Information:
Types of Backup Software : What’s the difference between Disk Imaging, File Based Backup, or Synchronization...?
File Backup Terminology: What do terms like “Differential,” & “Incremental,” mean, and how will they help me?
Make 2016 The Year You Start Doing Cloud Backups

More applications:
Softpedia's list: Back-Up and Recovery
Softpedia's list: File Sharing
MajorGeek's list: Back Up
AlternativeTo's list: Backup & Sync (click "Backup & Sync" to filter)
34 Free Backup Software Tools (with reviews)
List of backup software; Comparison of backup software
Open Source Storage: 49 Tools for Backup and Recovery
FREEWARE GUIDE - Utilities - Backup

 

File-level backup:
Subsections follow.

1. Windows built-in applications:
Automatically Make Continuous Backups of Personal Files with Windows 8/8.1 File History
The Automatic Windows 7 File Backup That You Didn’t Know You Had
How to Control the Amount of Disk Space Used by System Protection (System Restore) in Windows Vista/7
ShadowExplorer

2. Third-party applications - general:
Note: Some of the applications in section "Synchronization" can also be used for file-level backup.
Best Free File-Based Backup Program
BackUp Maker
FBackup
Comodo Backup
AOMEI Backupper Standard
EaseUS Todo Backup Free
Cobian Backup
Areca Backup
Genie Timeline Free
GFI Backup Home Edition
Ocster Backup Freeware
Toucan
FileHamster
CrashPlan
Veeam Endpoint Backup FREE
Yadis! Backup
CFBackup
Back4Sure
EaseBackup
JaBack
EVACopy
BitReplica
Peter's Backup
Personal Backup
Backup Dwarf Home Edition
aBackup2
SSuite File Backup Master
Z-DBackup Freeware Version
FileGee Backup & Sync System - Personal Edition
Exiland Backup Free
Uranium Backup Free
AceBackup
Lazy Mirror
Iperius Backup Free
Nero BackItUp
7Backup
BuddyBackup
AutoVer
UrBackup
Syncrify Personal
Bacula; download older versions for Windows (newer versions for Windows are not free)
Amanda
Renee Becca

Synchronization:
Best Free Folder Synchronization Utility
Comparison of file synchronization software
PureSync Personal
SyncBackFree
Fullsync
FreeFileSync
SyncToy
Karen's Replicator
DSynchronize
SyncBreeze
FlagSync
Create Synchronicity
Zback
Allway Sync
Sync Last Files Free
Backup Folder Sync
FileSynq
yCopy2
AutoVer
Synchredible Standard Edition
Fast Back'em Standard Edition
Saleen Folder Sync
MetroBackUp
Horodruin - stefanobordoni[DOT]interfree[DOT]it/Stefano/horodruin[DOT]htm
SyncFolders
Synkron
GoodSync Free
GFI Backup Home Edition
Toucan
BitReplica
Z-DBackup Freeware Version
FileGee Backup & Sync System Personal Edition
Exiland Backup Free
Syncrify Personal
File Synchronizer (Karaosoft)
BitTorrent Sync
Syncthing

Online backup/storage/synchronization:
Subsections follow.

1. Providers:
Dropbox vs. Carbonite: The difference between cloud-based storage and backup
Best Free Online Backup Sites (contains both online backup and online storage applications)
11 Free Online Backup Plans (with reviews)
33 Free Cloud Storage Services (with reviews)
Comparison of online backup services
Comparison of file hosting services
OneDrive; SDExplorer Base Edition
Google Drive; GMail Drive
Dropbox Basic
MozyHome; Mozy Sync
ADrive Personal Basic
IDrive Basic
Box Personal
Cubby Basic
TeamDrive
4Sync
Bitdefender Safebox
CloudMe
Memopal
SpiderOak
Syncplicity
TeamLab
MiMedia
HiDrive
BeeCloud
Wuala
Touro Cloud Backup
Symform
MyDrive
Pogoplug
KumoSync
LG Cloud
Amazon Cloud Drive
Yandex.Disk
ASUS WebStorage
CloudSafe
Norton Zone
Copy
Digital Lifeboat
Jottacloud
Symform
get2clouds
OziBox
SurDoc
hubiC
Yunio
pCloud
Nero BackItUp
CrashPlan
BuddyBackup
UrBackup
Syncrify Personal
Bacula; download older versions for Windows (newer versions for Windows are not free)
Amanda
myUpload
4shared
MediaFire
MEGA (Ch, FF)

2. Managers:
Jumptuit
Duplicati
Gladinet
Cloud Turtle
Neembuu Uploader
Joukuu
drag2up (FF, Ch)
Cloud Save (Ch)
Otixo
SkyShellEx

Drive imaging/cloning:
Subsections follow.

1. Windows built-in applications:
How to Create a System Image with Windows 8.1 File History
Make Your Windows 8/8.1 Computer Act Like New with the Refresh Feature
Create a Windows 7 System Image for Full Backup and Restoration
How to use Vista's Complete PC Backup and Restore utility

2. Third-party applications:
Best Free Drive Cloning Software
List of disk cloning software; Comparison of disk cloning software
Paragon Backup & Recovery Advanced Free
Macrium Reflect Free
Easeus Todo Backup Free
Keriver 1-click restore
AOMEI Backupper Standard
DriveImage XML
O&O DiskImage Express
Roadkil's Disk Image
ActiveImage Protector Free
ODIN
RecImg Manager
Realcopy
HDClone free
XXCLONE
Acronis True Image WD Edition 2010
EASIS Drive Cloning
Keriver Disk Sync
Roadkil's Raw Copy
HDD Raw Copy Tool
CopyWipe
G4U
Clonezilla
PING
PC INSPECTOR clone maxx
Partition Logic
Redo Backup and Recovery
EaseUS Disk Copy Home Edition
Lazesoft Disk Image & Clone Home
OSFClone
UrBackup
Active Disk Image Lite

Driver backup:
Best Free Windows Driver Backup and Restore
How to Back Up Windows 7 Drivers
Double Driver
Driver Magician
DriverGuide Toolkit
DriverBackup!
DriverGrabber
Driver Collector
See also in this list: Updating/searching for drivers

Email backup:
Best Free Email Backup Utility
Best Free Outlook Express Backup
MailStore Home
KLS Mail Backup
Personal Folders Backup
Outlook Express Backup
GMail Backup
EZ eMail Backup
OEBackup
Amic Email Backup 

Master boot record (MBR) backup:
8 Free Tools to Backup and Restore the Master Boot Record (MBR)
MBR Backup
Bootice
BootRescue

Registry backup:
How to Backup the Windows Registry
How to back up and restore the registry in Windows
Erunt
Registry Backup
EMCO Remote Registry Exporter
RegistryLoaderPE
HiveLoader
SMARegisTry Backup

USB device backup:
USBflashcopy
USB Flash Tools
USB Image Tool
ImageUSB

Other:
360 Document Protector (against ransomware)
Backing Up EISA Hidden PQSERVICE Partition and MBR on a New Laptop
Backup and Restore Vista OEM Activation License
EasyBCD - BCD Backup/Repair
NetSetMan
Tonido (FF, Ch)
DirectX Happy Uninstall
MozBackup
MailBrowserBackup
Servers
OPA-Backup
OSFMount
Gizmo Central
DataGrab
PowerFolder
HTC Sync
Undeluxe (undelete utility)
ZeroPC (Ch)
SnapRAID
ToolWiz Remote Backup
WinAIO Maker Professional

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Information:
How to Surf More Securely
How to Stay Safe While Online
What Else Have You Just Downloaded?
How to Block Bad Websites
How to Tell If A Website Is Dangerous
How to Remove Ads, Wasted Page Space and Annoying Content
14 Mozilla Articles to Help Make You a Better and Safer User of the Firefox Browser
A comprehensive list of Firefox privacy and security settings

Website safety checking:
Subsections follow.

1. Information:
Best Free Internet Safety Check

2a. AV browser add-ons:
Microsoft Defender Browser Protection (Ch)
Avira Browser Safety (FF,Ch,IE)
avast! Online Security (Ch,IE)
Bitdefender TrafficLight (FF,Ch,OB)
Comodo online security (Ch,FF)
Malwarebytes browser extension (Ch)
McAfee WebAdvisor (FF,Ch,IE)
Panda safe web (Ch)
AVG Secure Search (FF,Ch,IE,OB)
G Data CloudSecurity (FF,IE)
Trend Micro Browser Guard (IE)
Dr.Web LinkChecker (FF,Ch,IE)

2b. Other browser add-ons:
WoT - Web of Trust (AB)
Webutation (FF, Ch)
LinkExtend (FF,Ch)
Netcraft Extension (Ch, FF, OB)
Sitehound
Web Security Guard (IE,FF)
BrightCloud Toolbar (FF,Ch)
Trust My Web (FF,Ch)
SafeLinks FREE (Ch)
Anti-phishing Domain Advisor
Unveil Technology Webfilter Toolbar
IDND (FF)
PhishTank SiteChecker (FF)
FB Phishing Protector (FF)
SmartScreen Filter (IE)
Trustwave SecureBrowsing (FF,IE,Ch,OB)
VT Browser Extensions (FF,Ch,IE)
Malware Search (FF,Ch)
vURL Online (IE)
Quttera URL Scanner (Ch)
Flag for Chrome (Ch)
Flagfox (FF)
ShowIP (FF)
CallingID (FF,Ch,IE)
IPvFox (FF)
cyscon Security Shield (FF)
Botfree EU -list

3. Web applications:
VirusTotal
Zulu URL Risk Analyser
NoVirusThanks
Dr.Web
Comodo
Online link scan
Web of Trust
ScanURL
UrlVoid
IPVoid
Google
Unmask Parasites
Webutation
Norton Safe Web
AVG
McAfee: SiteAdvisor ; Threat Intelligence ; TrustedSource
F-secure
TrendMicro
PC Tools Browser Defender
K9 Web Protection
Websense ; SWF
Sophos
Brightcloud
Finjan URL Analysis
MalwareURL
Web Security Guard
Unveil
Sucuri SiteCheck
Wepawet
urlQuery
vURL Online
Quttera
Monkeywrench
Web Inspector 

4. Windows applications:
AVG LinkScanner
Quttera URL Scanner for Windows
Ad-Aware Web Companion

Anti-malicious/potentially unwanted browser add-ons:
Shield for Chrome (Ch)
Extension Defender (FF, Ch)
Privacy Guard (Ch)

Anti-browser tampering:
HitmanPro.Alert; Features of free vs. paid version
BrowserProtect (FF, Ch, IE)
Public Fox (FF)
Preferences Monitor (FF)
Secure Profile (Ch)

Protection against scripts:
Click-to-play (FF,Ch)
uBlock (FF, Ch, OB); uBlock Origin (FF, Ch, OB)
NoScript (FF)
JSGuard (Ch, FF)
uMatrix (Ch, FF, OB)
NotScipts (Ch,OB)
ScriptSafe (Ch)
YesScript (FF)
QuickJava (FF)
Quick Javascript Switcher (Ch)
ScriptBlock (Ch)
Script Defender (Ch)

Protection against mining:
No Coin (Ch)
MinerOff
Miner Block (Ch)

Protection against Adobe Flash:
Flashblock (FF, Ch)
FlashControl (Ch)
Clean the junk (FF, Ch)

Ad blocking:
AdGuard Home
Adblock Plus (FF, Ch); blocklists
Element Hiding Helper for Adblock Plus (FF)
Adblock Lite (FF)
AdBlock (Ch,OB)
Ad Muncher
AdFender (AB)
Adsweep (Ch, AB)
Simple-adblock (IE)
AdblockIE (IE)
Karma Blocker (FF)
AdvertBan (FF)
Bluhell Firewall (FF)
Ad-Aware AdBlocker (AB)
How to Remove Google Text Ads
Ad-Blocker for Gmail (FF,Ch)
Css AdBlock (FF,Ch,OB)
Quero Toolbar (IE)
Diladele Web Safety (AB)
Webmail Ad Blocker (FF,Ch)
AdNauseam (FF)
10 Ad Blocking Extensions Tested for Best Performance

Pop-up blockers:
Best Free Popup Stopper
Adblock Plus Pop-up Addon (FF)
Better Pop Up Blocker (Ch)
PanicWare Pop-Up Stopper (FF, IE)
EMS Free Surfer (IE)
Popup Blocker Pro (Ch)
JavaScript Popup Blocker (Ch)
Google Toolbar (IE)
Poper Blocker (Ch)

Safer downloading:
µTorrent Virusguard
Team Cymru (FF)
Check my Torrent IP
Trusted Downloads
Fireclam (FF)

Safer online shopping:
Shopping assistant
Zscaler Safe Shopping (FF)

HTTPS validation:
Certificate Patrol (FF)
Perspectives (FF, Ch)
SaferChrome (Ch)
SSLGuard (FF)
Calomel SSL Validation (FF)
Unencrypted Password Warning (Ch)
Convergence (FF)
Heise SSL Guardian
SSL Blacklist (FF)
PasswordFail Extension (Ch)
SSL Collection (FF)
See also in this list: Force HTTPS

Updating browser and add-ons:
Qualys BrowserCheck (FF, Ch, IE, OB)
Mozilla Plugin Check
Alternative Flash Player Auto-Updater
SecBrowsing (Ch)
SurfPatrol (Ch, OB)

Browser data backup and synchronization:
Best Free Bookmark Syncronizer
FavBackup
Xmarks (FF, Ch, IE, OB)
FEBE (FF)
Google Bookmarks (AB)
Sync2It (FF, IE)
Delicious (AB)
Diigo (AB)
Favekeeper
Linkman Lite (FF,Ch,IE,OB)
OPML Support (FF)
More

Browser data cleaning:
Click&Clean (FF,Ch)
Preferences Cleaner (FF)
eCleaner (FF)
IE HistoryView
BrowsingHistoryView (IE,FF,Ch,OB)
Iron Cleaner (Ch,OB)
Privacy Agent
History Eraser (Ch)
OneClick Cleaner for Chrome (Ch)
Clear Console (FF)

Short URLs:
Subsections follow.

1. Unshortening short URLs:
bit.ly Browser Extensions (FF,Ch)
Untiny url (AB)
TrueURL (FF, IE)
longurlplease (AB)
LongURL (FF)
URL X-ray (AB)
View Thru (Ch)
Unshorten URL
Unshorten.it (FF,Ch)
URL Uncover (FF,Ch)

2. Safer URL shorteners:
mcaf.ee (Ch)
scr.im

Text recovery:
Lazarus (FF, Ch)
Textarea Cache (FF)

Other:
Online tools for surfers and webmasters
SpyBHORemover
Silent Block (FF)
BlockSite; Plus (FF)
HTTP Content Security Policy Detector (FF)
Clickjacking Defense - Declarative Sec Detector (FF)
Remove It Permanently (FF)
Readability (AB)
TidyRead (FF,Ch)
Shortmail 
Kristal Safe Way
Link Location Bar (FF)
Zscaler Tools
IEZoneAnalyzer (IE)
Menu Editor (FF)
Password Alert (Ch)
ConfigFox (FF)

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Data recovery:
Subsections follow.

1. General:
Best Free Data Recovery and File Un-delete Utility
MiniTool Power Data Recovery
Testdisk
Wise Data Recovery
PC Inspector File Recovery
Photorec
Recuva
Easeus Data Recovery Wizard
Softperfect File Recovery
Undelete 360
FileWing
Avira UnErase
Toolwiz File Recovery
Restoration
Lazesoft Windows Data Recovery
Puran File Recovery
Eassos Recovery Free
Pandora Recovery
File Repair
DataRescue's DD
Lazesoft Data Recovery Home

2. From damaged media:
Best Free CD Recovery Utility
IsoBuster
IsoPuzzle
CDcheck
CD Recovery Toolbox
Puran Data Recovery

File copying:
Best Free File Copy Utility
Some Useful Free Windows Programs for Backing Up Your Files
Unstoppable Copier
TeraCopy
ExtremeCopy
XXCOPY
Fastcopy
UltraCopier
SuperCopier
KillCopy
Mass File Mover
NTFS File Copy Utility
ShadowCopy
NiceCopier
Limagito FileMover Lite
TimeDim
Copy Handler
RichCopy
WinMend File Copy
Directory Compare
dd for windows

Write more error-resistant media:
dvdisaster

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File encryption:
Subsections follow.

1. Using a separate file for every encrypted file:
Best Free File Encryption Utility
AxCrypt
DsCrypt
Crypt4free
EncryptOnClick
Toolwiz BSafe
Eureka
Androsa FileProtector
ICE encrypt
FreeSecurity
Crypt
Lazar Crypter
Blowfish Advanced CS
bcrypt; BcryptFE (GUI)
Handy Encryption
JavaEncryptor
Right-Click Encrypter
Adhcifar
MyFolder
MAXA Crypt Portable
Encoding Decoding Free
Sicurpas
idoo File Encryption Free
VSEncryptor
Encryption Wizard
Kryptel Lite
Bulambod
Smart Encryptor
encrypt
Silver Key Free
AES Crypt
BCArchive
GoAnywhere OpenPGP Studio
WinAES
Omziff
MultiObfuscator
Protectorion Data Safe
Quick Crypt
gpg2winshell

2. Using a virtual drive:
Best Free Encrypted Virtual Drive Utility
TrueCrypt; TruPax; TestCrypt
FreeOTFE
Safehouse Explorer
Secret disk
R-Crypto
Private-Public
Cypherix Cryptainer LE
CryptoExpert Lite
VeraCrypt
BestCrypt Traveller
CipherShed

3. Using a file archiver:
Best Free File Archiver-Zip Utility
7-Zip
IZArc
PeaZip
KGB archiver
Secure Archive
Bandizip
HaoZip
FreeArc
TUGZip
ZipGenius
A2 Strong Encryption Tool
Pocket UnZip
Secret Data Manager
ArcThemAll!
Express Zip
Bitser
More

4. Whole drive encryption:
Best Free Drive Encryption Utility
TrueCrypt; TruPax; TestCrypt
FREE CompuSec
Comodo
DiskCryptor
BitLocker Drives Unlocker

5. USB drive encryption:
USB flash security
Rohos Mini
SecureStick
Encrypt Stick
USB Safeguard
R.W. Flash Drive Explorer
Granite Portable
SecurStick

6. On-the-fly file encryption before storing online:
Best Free Encryption Utility for Cloud Storage
Cloudfogger
BoxCryptor
Secured Cloud Drive
nCrypted Cloud
Viivo
Cloudifile
Cryptomator
More

Text encryption:
Steganos LockNote
ETXT
crypTN
gpg4usb
scrambled-egg
ImmediateCrypt
Free Message Encrypter
MAXA TEXT-2-EXE
CTI Encryption
Cypher Bot
Text Guard lite
Secret Notes
BCTextEncoder
CryptoLab
MultiObfuscator
SecureEdit

Email encryption:
PGPFreeware
Comodo SecureEmail
Gpg4win
GPGrelay
Enigmail
Sophos Free Encryption
Safester
GPG4Browsers (Ch)
SafeGmail (Ch)
Mailvelope (FF,Ch)
InstantCrypt
Cassiopeia's BitMail
Email Guardian (FF,Ch)
Virtru (FF, Ch)
How to Encrypt Your Email and Keep Your Conversations Private
Automatically Encrypting all Incoming Email
CryptoLab
Confidant Mail
See also in this list: Secure e-mail service

Portable encryption applications:
Best Free Encryption Utility for Personal Use at Work

Hiding files/folders:
Best Free Folder Hiding Utility
My Lockbox
WinMend Folder Hidden
Easy file locker
Wise Folder Hider
Hidefolders
Free Hide Folder
MySecretFolder
FolderGuard
Secure Folder
HiddenDIR
Disguise Folders
FileWall
Sneaksy
Simple Run Blocker
More

Locking files/folders:
File & Folder Locker
A+ Folder Locker
BuduLock
LocK-A-FoLdeR
PadLock
SecretFolder
My Lockbox
Simple Run Blocker
Secure Folders

Steganography:
OpenPuff
Bon Kuy Bon
Steghide; Steghide UI; StegTorrent
wbStego
Hide in picture
DIIT
Invisible secrets
Concealar
BitCrypt
SteganoG
Free File Camouflage
Our Secret
Cipher Image Free
DeepSound
CipherTune
Steganography Revealed
SecretLayer
How to Hide Files in JPEG Pictures

Password protect applications:
Empathy
WinGuard Pro
ExeLock

Other:
SecureTrayUtil
Stunnel
MAXA Key Exchanger
TCHead
CryptSync
Secret Sharp
HP Trust Circles
List of One Time Pad encryption programs
Datum Locker
CrypTool
ShadowCrypt (Ch)
FREEWARE GUIDE - Utilities - Security & Encryption

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Information:
Best Free Firewall Protection

Windows built-in firewall:
Windows 10 Firewall Control 
XP firewall guide
Configuring XP firewall
Vista firewall guide
Firewall App Blocker
Diagnose and fix Windows Firewall service problems
Windows8FirewallPanel

Third-party firewalls with alert-based non-network behavior containment/detection:
Comodo Firewall
ZoneAlarm Free Firewall
Privatefirewall
Outpost Firewall Free
Online Armor Free
AVS Firewall
GlassWire
Jetico Personal Firewall
Sunbelt Personal Firewall (trial) ; functionality present after trial is over
PC Tools Firewall Plus

Third-party firewalls without alert-based non-network behavior containment/detection:
SimpleWall
FortKnox Firewall
TinyWall
Windows 10 Firewall Control
Windows Firewall Notifier
Windows Firewall Control
Rising Personal Firewall
Filseclab Personal Firewall Professional Edition
Safety.Net
GhostWall
Sygate Personal Firewall Free
SoftPerfect Personal Firewall
Kerio Personal Firewall
R-Firewall
Ashampoo Firewall
WIPFW
nDispatcher
DCFirewall
Xvirus Personal Firewall

Network perimeter security-related operating systems:
Subsections follow:

1. Containing at least a firewall:
List of router and firewall distributions
Smoothwall Express
Pfsense
IPCop
m0n0wall
IPFire
Devil-Linux
LEAF
Zeroshell
Coyote Linux
RusRoute
FREESCO
MikroTik RouterOS
floppyfw
redWall Firewall
Sentry Firewall CD

2. Unified threat management (UTM):
Endian Firewall Community
ClearOS Community
Untangle NG Firewall Free
Sophos UTM Home
Zentyal Community

3. Router alternative firmware:
List of router and firewall distributions
Tomato
DD-WRT
OpenWrt
RouterTech
Talisman/Basic
XORP

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Alert-based non-network behavior containment/detection without a firewall:
HIPS Explained
Best Free Intrusion Prevention and Detection Utility for Home Use (HIPS)
WinPatrol Free
OSArmor
Riot Isolator
SysWatch Personal
Malware Defender
ReHIPS
Spyware Terminator (newer free version is available but lacks HIPS)
System Safety Monitor Free Edition
OSSEC
Ambush IPS
MJ Registry Watcher
SystemShield
TeaTimer ; about; download (newer free versions do not include TeaTimer)
Arovax Shield
Patriot NG
ThreatFire
Xyvos Antivirus
McAfee Raptor
EQSecure
All-Seeing Eye

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IP filtering applications:
Peerblock
ProtoWall
Bot Revolt

HTTP filtering applications:
NoVirusThanks Website Blocker
Web Monitor
Active Wall Web Filter

Parental control:
Best Free Parental Filter
Norton Safety Minder
Windows Live Family Safety
Kidzui
K9 Web Protection
Avira Social Network Protection
Parental Control Bar
Safesquid
AOL Parental Controls
DansGuardian
Kidz CD
BlockSmart
Cloudacl Addons (FF,Ch)
GoGoStat
FoxFilter (FF,Ch)
ProCon Latte (FF)
Profanity Filter (FF, Ch)
Blocksi (Ch)
Qustodio
MinorMonitor
Kurupira Web Filter
JuniorWatch
Safe Internet for kids
Dns Angel
See also in this list: Password protect applications

IP/URL/domain blacklists:
NextDNS
Quad9
Cloudflare
Spy Eye Tracker
Zeus Tracker
Blocklist Manager
I-Blocklist
AlienVault
StopBadware
OpenDNS
Threat Log
DShield
More

Domain security:
Subsections follow.

1. Domain Name System (DNS):
Subsections follow.

1.1 Public DNS servers:
Norton ConnectSafe
OpenDNS
Comodo Secure DNS
DNS Advantage
ScrubIT
FoolDNS
Google DNS
Gozoom DNS
DNSresolvers
Safe DNS
CloudNS
Yandex.DNS
BA.net
OpenNIC
Verisign Public DNS
More: 1; 2

1.2. DNS server configuration:
Public DNS Server Tool
DNS Helper
ChrisPC DNS switch
QuickSetDNS
Check DNS-settings
Dns jumper
DNS Benchmark
Namebench

1.3. DNS server applications:
Unbound
DNSKong

1.4. DNS proxies:
Acrylic

1.5. DNS encryption:
Dnssec-Trigger
DNSSEC Validator (FF)
DNSSEC or not? 
DNSCrypt
SSL-DNS

2. Hosts file:
Subsections follow.

2.1. Information:
Using the Windows Hosts File for Security and Privacy

2.2. Third-party hosts files:
hpHosts
MVPS HOSTS
Hostfile
someonewhocares HOSTS

2.3. Management:
Hostsman
HostsXpert
BISS Host File Manager; download
Hostblock
BlueLifeHosts editor
PowerShell script
Hosts Block

Anti-spam:
Subsections follow.

1. Information:
How to Avoid Getting Spammed
How to Reduce Spam
Quickly Block All Future Emails From Selected Senders In Gmail

2. Spam filtering applications:
Best Free Spam Filter for the Average User
Best Free Spam Filter for Experienced Users
Spam Blockers: The Best Products for Home Use
SpamAssassin
SpamBayes
Spamihilator
SPAMfighter
Comodo Antispam
Mailwasher
BullGuard Spamfilter
POPFile
SpamPal
ASSP
Phalanx
AVS Antispam
Agnitum Spam Terrier
SafeMule
xTerminator
K9
AntispamSniper for The Bat!
SpamFence
0Spam
BitDefender 4blogs

3. Spam blacklists:
Spamhaus ; Why was my IP address listed on Spamhaus?
SpamCop Blocking List
Project Honey Pot
SURBL
SORBS
UCEPROTECT

Browser element blacklists:
SpywareBlaster
ZonedOut
Adding unwanted sites to the Internet Explorer Restricted Zone

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The items formerly on this page have been reorganized onto the Scanners page.

Read/Post comments

General security resources and guidelines:
Best Computer Security Sites
(IN)SECURE Magazine
Useful Computer Security Resources
So You Want To Be A Malware Analyst
Hacker 10
How to Become a Hacker
GetNetWise
SecurityTube Tools
US-CERT
Security In A Box
Security and So Many Things

Blogs and news:
Kaspersky: Securelist; Threatpost
Symantec Security Blogs
Trend Micro
ESET ThreatBlog
F-secure
Safe and Savvy
Naked Security (Sophos)
Microsoft Safety & Security Center
Microsoft Security Response Center
Microsoft Malware Protection Center
Microsoft Security Research and Defense Blog
Microsoft TechNet
Microsoft Cyber Trust Blog
Schneier on Security
Krebs on Security
Zscaler Research
Internet Security News - Team Cymru
CloudFlare
Ars Technica
GFI Labs
PC Security
Webroot
Dark Reading
Zero Day
HOTforSecurity (Bitdefender)
Graham Cluley Security News
Malwarebytes Unpacked

Security discussion forums:
Wilders Security

Other problem solving forums:
Suggestions for asking a question on help forums
Microsoft Support
Microsoft Community
Microsoft Technet
w7forums
sevenforums

Security program lists:
SecTools.Org
Spywarewarrior
Cyber Security tools list
Alken
firewallguide
Wikipedia
Freeware Home
Freeware Files
List of lists
Gogeek
Free Software Foundation
4sysops
HLRnet.com
it-sec-catalog

List of malicious/unwanted software:
Lavasoft Rogue Gallery
Spyware Warrior
FortiGuard Labs
The Adware List
Kaspersky

Portable application launchers:
LiberKey
PortableApps
App.etizer
Asuite
CodySafe

Remote control:
Best Free Remote Access Software
Teamviewer
UltraVNC
RealVNC
Crossloop
Ammyy Admin
ThinVNC
TightVNC
OnlineVNC
Concurrent RDP Patcher; review
Remote Desktop Manager
RemoteVU
PC Monitor
ToolWiz Remote Backup
Chrome Remote Desktop (Ch)
sRemote
AnyDesk
Requirements in Using Networking Tools on Remote Windows Computers
See also in this list: VPN software

Screen sharing:
join.me
Mouse Without Borders
Mikogo 

Laptop theft prevention:
Coming Soon To Windows 10: Find My Device
Prey
LAlarm
A.L.A.R.M
Adeona
iSpy
ContaCam
LaptopLock
PC-Alarm and Security System
Key Monitor
WebCamImageSave
ThinkPad Anti-Theft Manager
Laptop security tips

Lock keyboard and mouse:
BlueLife KeyFreeze
Toddler Keys
Littleguard
S Lock
Kid-Key-Lock
killkeys
Child Lock
KeyFreeze
Baby Smash!

System lock:
Predator
BtProx
USL
WinLockr
ClearLock
Eusing Maze Lock
VSUsbLogon
dWinlock
ScreenBlur
OSAS Computer Locker
Desktop VLocker
Windows Screen Locker

Macro utility:
Best Free Hotkey or Macro Recorder Utility
AutoHotKey
Do It Again
Actionaz
FileSavvy
AutoIt
Sikuli
WinParrot
TinyTask
Pulover's Macro Creator
iMacros (FF,Ch,IE)
ifttt

Device/document signatures:
Open Signature
DigiSigner
Aloaha sign!
Easy Signature
JSignPDF
HelloSign
SignNow

All-in-one utilities for many tasks:
DiskBoss
Swiss File Knife
Wizmo
FileBot
Win32 Console ToolBox
Far Manager

Collection of tools:
Windows Sysinternals
Microsoft's Free Security Tools
NirSoft
Tweaking.com
The Windows Club
AskVG Apps
Emiel Wieldraaijer
Roadkil.Net
Mandiant
GuruX
My Portable Software
SolApplets
sepago
Doug's Windows
IntelliAdmin Free Utilities
Bapuli Online
Daanav.com
Drive Tools for Windows

Secure OS:
Qubes
Fortress Linux - https[COLON]//www[DOT]fortresslinux[DOT]org/
NetSecL
OpenBSD
Tin Hat

Censorship circumvention:
Internet censorship circumvention
PirateBrowser
Hola Unblocker (FF,Ch)
Proxy DNS
9 Alternative Ways To Access Blocked Sites
8 Ways to Access Blocked Sites

Other:
ESET Virusradar
Symantec Internet Threat Meter
Norton Cybercrime Index
Spambot Search Tool
Stolen Camera Finder
iPhoneTracker
Web Application Security - How to Minimize the Risk of Attacks
Power Off USB Port when Safely Removed USB Device in Windows 7
RegToBat
Advanced BAT to EXE Converter
Copy Locked File In Use with HoboCopy
The Surveillance Catalog
In My Diary
LoadDLLViaAppInit
Unchecky

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Ako's online banking advice:

Use one standard account for ALL everyday use and make another one which is used ONLY for banking. The point is, that if the everyday standard account is infected, the infection is almost always limited to that account. (99% safety guaranteed. This of course requires that you are not yet infected, and don't install malware with administrative rights in the future.)

Highly interesting non-free products

Shadow Defender (lifetime licence)

 

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Port checking:
ActivePorts
TcpView
CurrPorts; IPNetInfo
Roadkil's Scan Port
TCPEye
Opened Ports Viewer
Free Port Scanner
Pwn
Port Scanner
PortScan
IPFingerPrints 
Advanced Port Scanner
SuperScan
CrowdInspect; download

Botnet diagnosis:
Trendmicro RUBotted
FayeTracker

Network traffic monitoring:
Axence NetTools
Networx
Netmeter
Network lights
Urlsnooper
Cucusoft Net Guard
ProcNetMonitor
Pandora FMS
Kismet
Network Monitor II
PRTG Network Monitor
Network Activity Indicator
NetWitness Investigator
Network Meter
My Network Speed
NetTraffic
York
Real Network Monitor
SterJo NetStalker
Active Wall Traffic Monitor
Network Manager
TechString
NetToolset

Network traffic analyzing:
Best Free Network Analysis Tools
Wireshark
NetworkMiner
Nmap
Fiddler
Cain & Abel
IP Tools
Microsoft Network Monitor
Analyzer
Smartsniff
Colasoft Capsa Free Network Analyzer
Angry IP Scanner
SoftPerfect Network Scanner
Advanced IP Scanner
WinSniff
NetworkTrafficView
RawCap
IP Traffic Spy
AthTek NetWalk Personal
Moo0 Connection Watcher
Network Scanner
ICSI Netalyzar

Whois/IP lookup:
DomainTools
DomainHostingView
WhoisThisDomain
Online Domain Tools
Whois Tool
who.is
IPNetInfo
IPInfoOffline
IP locator
ip2c

Network intrusion detection system:
Snort
Bothunter
TWIDS
ThreatFinder

Control internet traffic priority:
NetBalancer

Internet speed and quality test:
Speedtest
Pingtest
Broadband Speed Checker
JD's Auto Speed Tester
TamoSoft Throughput Test
DSL speedtest (Ch)

Ping:
Emco Ping Monitor
Ping Monitor
hrPING
http-ping
PingInfoView
Colasoft Ping Tool

Wireless tools:
Best Free Wi-Fi Network Finder Utility
inSSIDer
Xirrus Wi-Fi Inspector
NetSurveyor
SciLor's Wifi Penetrate
Wireless Network Watcher
Homedale
Network Stumbler
Wireless Wizard
TekWiFi
NetGhost
WeFi
W10ifiInfoView
Wifi Protector
SoftPerfect WiFi Guard
Securing wireless network
How To Check If Someone Is Stealing Your WiFi

Collection of tools:
Network Security Toolkit
OSSIM
Plax network suite
eToolz
Network Stuff
HoverIP
Network Monitoring Tools Package

Monitor file shares:
ShareEnum
NetShareMonitor
McAfee ShareScan; review
ShareWatcher
ShareWatch

ARP protection:
Protection against ARP poisoning
Anti NetCut
DecaffeinatID
CUTe ARP Protector

Website monitoring/analysis:
Websites Cop
Down For Everyone Or Just Me
WebESC
NotiPage
Mon.itor.us
ThreatSign!
ServiceMon
TargetAnalyser
See also in this list: Website security

Other:
NoSnoop
CountryTraceRoute
Computer IPv6 addresses & privacy
WebSiteSniffer
HTTP LogStat
DNSQuerySniffer
Connection Keeper
Sentinel
LanTopolog
Simple IP Config
ADHD
HookME
Firewall Builder
Reporting Hacked or Rooted Servers used by Booters to Datacenters
SSL Eye

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Has (Had) Low Web of Trust rating:

Yet Another Cleaner
Perzo
Sendori
Trojan Killer
ACleaner
LockAnEXE
KuaiZip
Simple Backup Tool
MovDivx
ZipItFree
Hardware Read & Write utility

Might be useful, but not recommended:
PC Tools Antivirus Free (retired)
Spyware Doctor (retired)
RemoveIT Pro (too many dangerous false positives)
Winpooch (retired)
WIPS (proof-of-concept software; very demanding)
Blue Atom (low detection rate antivirus)
Mint Security Essentials (low detection rate antivirus)
Emco Malware Destroyer (low detection rate anti-malware)
Mysystemexpert (low detection rate anti-malware)
Malware Eraser (low detection rate anti-malware)
Ultrasurf (probably legitimate, but has some strange behaviour)
SpywareGuard (out-of-date)
SecureIT Free (out-of-date)
FSB Antivirus (beta program with buggy/incomplete features)
BkavHome (no auto-update; outdated; bad international support)
Zoner (private beta)
Moon Secure (engine is outdated; not under active development; buggy features)
CMC Infosec (dangerous false positives)
SpyCatcher Express (outdated)
WormBlaster (outdated)
CA antispyware (outdated; not under active development)
Airy Free AntiSpyware (ineffective; BitDefender and Sophos alerts on website)
CookieCuller (outdated)
CYSEC Anti-Virus (multiple detections including by itself)
NextGen Antikeylogger (outdated)

Not recommended:
NoAdware (rogue)
StopZilla (rogue)
SpyRemover (rogue)
Balaji Plus Cloud Antivirus (nonexistent program; multiple lies)
RoboSAM (rogue)

Read/Post comments

The items formerly on this page have been reorganized onto the Scanners page.

Read/Post comments

Introduction:
The Complete Guide To Protecting Your Privacy Online
Turning on pro-privacy features in your web browser: A visual guide
How to Improve Your Security When Using a Public Terminal
How to secure your personal data at border crossings
What Is Social Engineering? 
Social-Engineer.org
How to Harden Your Browser Against Malware and Privacy Concerns
Identity Theft
PRISM Break
How to Keep Google from Putting Your Name and Picture in Their Ads
How to Stop Google from Keeping a Record of Every Search You Make
How to stop the NSA from tracking your mobile phone calls
IVPN Privacy Guides
If You Don't Want to Appear in Google Ads, Read This
privacytools.io
How to Check and Edit the Privacy Settings for Accounts at Microsoft and Google
How Google Knows Everywhere You've Been

Windows OS privacy:
Fix Windows 10 privacy
DoNotSpy10
Destroy Windows 10 Spying
Windows 10 Privacy Fixer
DisableWinTracking
Remove Windows 10 Spying Features
O&O ShutUp10
Spybot Anti-Beacon
Windows Privacy Tweaker
BlockWindows
Remove telemetry updates for Windows 7 and 8.1
Ashampoo AntiSpy for Windows 10
Comparison of Windows 10 Privacy tools
Understanding and Dealing with the Windows 10 Privacy Issue
How To Stop Windows 10 From Phoning Home
Windows 10 and Privacy
Are Recent Patches to Windows 7/8 Letting Microsoft Spy on You?
More About Privacy Settings in Windows 10
Increase Your Privacy by Turning off the Diagnostics Tracking Service in Windows 7

Social media privacy:
Subsections follow.

1. General:
Sitelier
Sgrouples 
Nightweb
Norton Satellite

2. Facebook:
Facebook Family Safety Center
Security Homepage
Report Compromised Account
Privacy settings: 1; 2; 3; 4; 5; 6
The (Very) Unofficial Facebook Privacy Guide
How to permanently delete your facebook account
How do I permanently delete my account?
How to block A Facebook stalker

3. Twitter:
Safe tweeting: the basics
Do Not Track
How to Tweet Safely: A Quick Guide to Twitter Security
AnonTwi
efemr

4. Web applications:
MyPermissions
Defensio
Norton Safe Web
BitDefender Safego; Twitter
ESET Social Media scanner
MyPageKeeper
F-Secure Safe Profile (beta)
F-Secure ShareSafe
Safe Twiit
Facebook Privacy Scanner
Privacy Check
Zesty
AccountKiller
Delete Your Account
WikiCancel
Just Delete Me

5. Browser extensions:
Social Permissions (Ch,FF,OB)
Priveazy Lockdown (Ch)
Privacyfix (Ch,FF)
Google Privacy (FF)
Social Privacy Protector (FF)
Facebook Privacy Watcher (FF)
ShareMeNot (Ch,FF)

Search engines with high privacy:
Whoogle
Privare.sh
Runnaroo
Infinity Search
JoshWho
Startpage
Duckduckgo
YaCy
Zeekly
Disconnect Search (FF,Ch)
Blippex
Ortigra
privatesearch.net
Acoon
eTools.ch
More

Chat privacy:
Cryptocat ; review
Jitsi
PrivyTalks
TorChat
ChatStep
Bitdefender chat encryption
Safety Jabber
Off-the-Record Messaging
OTR (Ch, FF)
Tox
IronPidgeon
ChatCrypt 
VSee
Peerio (Ch)
Subrosa
Matrix 

Secure messaging:
Burn Note 
Privnote
PrivacyBox
PrivateSky (IE)
OneShar.es
Lockify
RetroShare
Bitmessage
ThreadThat 
NoteShred 
SecretInk 
ReadOnce 
Dstrux 

Identity protection:
BugMeNot
Fake Name Generator

Check your online footprint:
Me and my Shadow
Pipl
Social Mention
ScanEye
You Have Downloaded

E-Mail:
Subsections follow.

1. Secure e-mail service:
CTemplar
Hushmail
Lockbin
Riseup
ProtonMail
Safe-mail
Enlocked (AB)
Sendinc
Cyber-Rights
MailVault
FastMail
Zoho Mail
Enigmail
Mailvelope (Ch,FF)
SecureGmail (Ch)
AutonomyCentral
OpenMailBox.org
WeMail.me
Mailpile
Mail1Click (Ch)
Scramble
ShazzleMail
Scramble.io
RuggedInbox.com
SCRYPTmail
GhostMail
More: 1; 2
See also in this list: Email encryption

2. Anonymous e-mail:
Send Anonymous Email
anonymous e-mail
Remailer Reliability Stats
TorBirdy (add-on for Thunderbird)
Novo-Ordo NoName Anonymous Email
More

3. Fake e-mail generator:
SmailPro
Mailinator (Ch)
TrashMail (FF, Ch)
BigString
10 Minute Mail
Dead Address
TempEMail
Guerrilla Mail
Anonymbox
MailNesia
EasyTrashMail
FakeInbox
MailCatch
AirMail
MaskMe (FF, Ch)
Bloody Vikings! (FF)
Less Spam, please (FF)
YOPMail (FF, Ch, IE)
The Ultimate Disposable Email Provider List 2012
More

4. E-mail/account security check:
An Easy Way to Check for Unusual Activity in Your Gmail Account
List of Free Email Accounts that Shows Last Access Login Details
ipTRACKERonline
Email Header Analysis
E-Mail checker; review
PwnedList
Should I Change My Password?
Identity leak checker
have i been pwned?
Make It Easier To Trace The Source Of Email
If Your Password Is On This List, It's Time To Change Passwords

Passwords:
Subsections follow.

1. Password management:
Best Free Web Form Filler and Password Manager
How Companies Can Beef Up Password Security
Lastpass (AB)
Bitwarden
Keepass; KeeFox; ChromeIPass
Password Safe
Secure login (FF)
Access Manager
Dashlane (AB)
FlyingBit Password Keeper
S10 Password Vault
Sticky Password
Free Password Manager
PassPack (AB); UsePass (Ch)
Universal Password Manager
Efficient Password Manager
LockCrypt (FF)
LSN Password Safe
my1login
Clipperz
PINs
Password Vault Manager Standard
Any password
Kemesa Password Manager
LoginCode
Password Bank Vault
SafeWallet
Intuitive Password (AB)
Mitro (Ch,FF,OB)
Safe In Cloud (FF,Ch)
F-Secure KEY
Norton Identity Safe
KeyWallet 
Methods and programs for splitting a secret into multiple parts
Methods of password backup and recovery using challenge questions

2. Generating secure passwords:
How to create strong, secure passwords that you can easily remember
How To Create A Strong Password And Remember It
Create strong passwords
The Usability of Passwords
Password Cards
Perfect Passwords
Perfect Paper Passwords
How Big is Your Haystack?
Norton Identity Safe Password Generator
PWGen
Celframe
Password Generator
IObit Random Password Generator
SoftFuse Password Generator
PassGen
Awesome Password Generator
tidepass
Hash Password Generator (FF)
PwdHash (FF, Ch)
Magic Password Generator (FF)
Password Hasher (FF)
RndPhrase (FF)
Secure Passwords
SuperGenPass
htCrypt
PasswordLive
Password Saavy 
SecurePassword Kit / GetSecurePassword 
SimThrow
Pafwert
Passwordcard Generator 
Diceware random words method
How do I use dice to create random strings of letters and numbers?
Making Random Letter Passwords Memorable
How to Create a Secure Master Password
Bruce Schneier's method
How to generate strong passwords with Google Chrome without third-party extensions
Brainpass Password Generator

3. Checking passwords:
Microsoft
The Password Meter
Password Security Scanner
Passfault
PasswordResearch.com
Password Score
zxcvbn
Telepathwords 
Rumkin.com Strength Test
Reveal hidden passwords in all major browsers

4. Virtual keyboard:
Best Free Onscreen Keyboard for Security
Neo's safekeys
Mouse Only Keyboard
Virtual Keyboard Interface
7 Core Secure Input (Ch)
Keylogger Beater (FF)
Oxynger KeyShield

Safeguarding banking session:
Trusteer Rapport
ID Vault
Bitdefender Safepay
Quarri MyPOQ 
Secure Virtual Desktop
How Scammers Target Your PayPal Account
Tips: 1; 2
See also in this list: Portable OS
See also in this list: Ako's online banking advice

Anonymity networks:
Subsections follow.

1. General:
Best Free Anonymous Surfing Services

2. Tor:
Tor+Vidalia
tor2web
Advanced Onion Router
Onion.To
JanusVM
BlackBelt Privacy Tor+WASTE
Lahana 
Easy and secure anonymous internet usage
Achieving Anonymity with Tor
Exit node geolocation for Tor
TorWall
Torcap
StegoTorus

3. Other anonymity networks:
I2P
Freenet
Kullo
demonsaw
Comparison of Tor vs. I2P vs. Freenet
List of Anonymous Networks
Anonymous P2P

Browsing without a trace:
Tails
Lightweight Portable Security
Pollipix 
Browzar
DemocraKey LiveCD
OccupyOS
Liberte Linux
Whonix
IprediaOS
Kodachi
Ubuntu Privacy Remix
Snowden Tribute
Freepto

Proxies:
Subsections follow.

1. Information:
What is a Proxy Server?
What is the difference between a SOCKS proxy and an HTTP proxy?

2. Proxy software:
Shadowsocks
BarbaTunnel
ReQrypt
Zebedee
List of proxifiers
Privoxy
Polipo
BFilter
Sidki's Proxomitron config
Proxomitron + JD list
Freecap
JonDo
Your Freedom
alkasir
X-Proxy
Freegate
GPass
Charon
SafeIP
ChrisPC Free Anonymous Proxy
+A Proxy Finder
Elite Proxy Switcher
E-Bouncer
friGate (Ch, FF, OB)
See also in this list: Proxy browser add-ons

3. Online proxies:
Vtunnel
Anonymouse
Ninjacloak
Zend2
Proxybrowsing
StupidCensorchip
Guardster Free Web Proxy
SmartHide Online Anonymizer
TUVPN High Anonymity Web Proxy
Fish Proxy
ZIGproxy
Glypeproxy script
Proxy.org
Public CGI list
Free Proxy List
Proxy Site List
ProxyMonster
Spys

Free VPN connection:
Best Free VPN
SecurityKISS
CyberGhost
Hotspot shield; Expat Shield
It'sHidden; signup
USAIP
PacketiX
VPNReactor
Free hide IP
ProXPN
TunnelBear
Spotflux (Ch); review
OkayFreedom
Steganos Online Shield 365 free
VPNDirect Lite
VPN Gate
VPNLive - collection of proxy and VPN
Hideman VPN
Faceless.me
VPNBook
Browsec
Betternet
Wallcy (Ch)
5 ways to protect yourself when your VPN connection fails

VPN software:
Comodo Unite
OpenVPN Community Software
iPIG
LANoi
VPN Link Test
VPN Lifeguard
NeoRouter  (Ch)
SoftEther VPN
tinc
See also in this list: Remote control

Secure file transfer and/or terminal emulation:
Best Free Telnet-SSH Terminal Emulator
Tunnelier
WinSCP
PuTTY
KiTTY
SilverSHielD
OpenSSH for Windows
AnyConnect
Terminals
MobaSSH
FileZilla
Cyberduck
AirDC++
Rightload
Fresh FTP
dtelnet
Swish
FTP Rush
Xshell
DameWare SSH Client
FireFTP (FF)
Secure Shell (Ch)
FTPShell
Core FTP LE
Poderosa

Force HTTPS:
HTTPS Everywhere (FF,Ch)
ForceTLS (FF)
Prefer HTTPS (Ch)
Secure connections on sites (FF, Ch)
HTTPS Finder (FF)
My Security Search Bar (FF)
Strict Transport Security - Detector (FF)
KB SSL Enforcer (Ch)
HTTP Nowhere (FF)
See also in this list: HTTPS validation

Spoofing mac address:
Computer MAC addresses explained
TMAC
SMAC
Mac Makeup; McMMKUP
Macshift
MadMACs
How to Change or Spoof MAC Address in Windows XP, Vista, Server 2003/2008, Mac OS X, Unix and Linux

Checking your own IP:
IP Adress
Danasoft
IP2
IPLogger (FF)
IP Informer
IP Chicken 
Google 
More

Web browser:
Subsections follow.

1. Anonymous browsers:
Tor Browser Bundle
Jondofox
xB Browser
OperaTor
KPROXY Agent

2. Proxy browser add-ons:
Foxyproxy (FF)
Proxy tool (FF)
Proxilla Glype Proxy Client (FF)
Go2 proxy (FF)
anonymoX (FF)
Stealthy (FF)
AutoProxy (FF)
ProxTube (FF)
Proxy Switchy! (Ch)
Proxy SwitchySharp (Ch)
Stealthy (Ch)

3. Firefox privacy: (FF)
Best Free Firefox Add-ons
RequestPolicy; RequestPolicy Continued
Smart Referer
RefControl
Live HTTP Headers
PrivacySuite
Form History Control
FormFox
Stealther
Cocoon
SquiggleSR
Link Password
Secure Sanitizer
Master Password+
FireGloves
Leet Key
Encrypted Communication
Private Browsing by PortableApps (for portable Firefox)
Blender
SettingSanity
Secret Agent
History disable button
Masking Agent
PrefBar
NoTrace
Random Agent Spoofer
Network Monitor
Policeman
Disable Speculative Pre-connections

4. Chrome privacy: (Ch)
Privacy manager
UnSearch
Ghost incognito
Chrome Privacy Protector
Paranoid Browsing
ZenMate
Secure Bookmarks
KISS Privacy
Cache Killer
Keyboard Privacy
Guest browsing

5. Eliminate ad-data tracking:
Enable "Do not track" in browsers
Privacychoice (AB); TrackerScan (AB)
Ghostery (AB)
DoNotTrackMe (AB)
TACO (FF,Ch)
Disconnect (FF,Ch)
TrackMeNot (FF,Ch)
Beef Taco (FF)
Priv3 (FF)
NAI Opt-out Tool (FF)
Keep My Opt-Outs (Ch)
Parley (Ch)
SelectOut (Ch)
Google Analytics Opt-out Browser Add-on (FF,Ch,IE)
Google Advertising Cookie Opt-out Plugin (FF,Ch,IE)
Lightbeam (FF)
Adnostic (FF)
PrivDog (FF,Ch)
TrackingObserver (Ch)
Privacy Badger (FF,Ch)

6. Tracking lists:
IE
Clean MX

7. Cookie control:
CS lite (FF)
Cookie monster (FF)
CookieSafe (FF)
Cookie culler (FF)
MAXA Cookie Manager
selectivecookiedelete (FF)
Cookie Controller (FF)
Cookie Whitelist, With Buttons (FF)
Vanilla Cookie Manager (Ch)
Edit This Cookie (Ch)
Cookie Manager (Ch)
Cookie Monster (Ch)
WebCookieSniffer
Expired Cookies Cleaner (IE)
CookieSpy
Self-Destructing Cookies (FF)
Biscuit (FF)
Cookies (Ch)

8. Killing Adobe Flash Local Shared Objects:
BetterPrivacy (FF)
Objection (FF)
Click&Clean (AB)

9. Redirect removal:
Redirect Remover (FF)
Redirect Cleaner (FF)
NoRedirect (FF)
Fix Url Links Redirect (Ch)

Data:
Subsections follow.

1. Removal of jpeg metadata:
JPEG and PNG stripper
BatchPurifier LITE
Metanull
jScript

2. Removal of doc metadata:
Doc Scrubber
Document Metadata Cleaner

3. Data firewall:
MyDLP

4. Data protection tools:
File Secure Free
Safetica Free

Automatic analyzing of EULA/TOS:
Eulalyzer
Spywareguide
TOS;DR
TOSSOS
Common Terms 

Boss key:
SmokeScreen
Panic Button (FF, Ch, OB)
More

Collection of tools/services:
Anonymous Services
Anoniem-surfen
Download squad
EPIC
WinPT
Autistici/Inventati 
SaluSafe 
Unseen 
Martus

Anonymity tests:
XeroBank
Decloak
Cloakfish
Proxy Test
Proxy Checker
Advanced Proxy Check
IP check
IP-Secrets
Anonymity Checker; Online privacy test
WITCH?

Other:
Evidence
JStylo-Anonymouth; review
OneID (Ch)
Tribler
CanvasBlocker (FF)
CanvasFingerprintBlock (Ch)

Return to Security List Index

Read/Post comments

Antivirus:
Best Free Antivirus Software
Windows Defender, Configure Defender
WiseVector StopX www[dot]wisevector[dot]com/WiseVector_StopX.exe
SecureAPlus
Kaspersky Cloud antivirus
Bitdefender Antivirus Free Edition
Avast!
AVG
Avira
Panda Cloud 
Ahnlab prod[dot]ahnlab[dot]com/v3lite/v40/download/V3Lite_Setup.exe
Nano Antivirus  
Tencent
Ad-Aware
Comodo
Sophos Home
360 Total Security Essential
Kingsoft Antivirus
Baidu
McAfee Cloud AV
Clam Sentinel (with ClamWin)
Twister Antivirus
Clearsight Antivirus

Anti-malware (can be run alongside with an antivirus):

IObit Malware Fighter
Immunet
Clam AV
VirIT eXplorer Lite
Hazard Shield
Spybot - Search & Destroy
Crystal Security
Xvirus

Anti-ransomware
NeuShield Data Sentinel
Acronis Ransomware Protection
Cybersight Ransomstopper
Malwarebytes Anti-Ransomware
Kaspersky Anti-Ransomware Tool
Trend Micro RansomBuster

Anti-mining
MinerOff

Security suite (antivirus, anti-malware and firewall):

ZoneAlarm
Outpost Security Suite Free
Comodo
Forticlient
Roboscan
360 Total Security
5nine Cloud Security for Hyper-V Free Edition

Other:
Difference Between Malware, Virus, Rootkits, Spyware, Worm and Trojans
Antivirus developers and vendors: 1; 2; 3

Read/Post comments

Sandboxing (for browsers etc):
Best Free Browser Protection Utility
Sandboxie
Aux Browser
GeSWall; download
Bufferzone
SurfCanister
Shade Anti-Malware

System virtualization:
Returnil
Toolwiz Time Freeze
Virtual Protect
Private Workplace
Reboot Restore Rx

Rollback software:
SysRestore
RollBack Home Edition

Locked system:
Toolwiz BHORM

Desktop virtualization:
Mojopac
Icore

Virtual players:
MobaLiveCD

Virtualization software:
Best Free Virtualization Solutions
VirtualBox; Portable-VirtualBox
VMware Server
VMware Player
VirtualPC
VMLite
VMToolkit
Bochs
Client HyperV

Repository of virtual appliances:
Zero Install
Spoon

Application virtualization:
Evalaze
Cameyo
Enigma Virtual Box
InstallFree Nexus
JauntePE
P-Apps

Virtualized browser:
Inmunos
Dell Kace Safe Browser
Browser in the Box 
SecuBrowser

Hypervisors:
VMware vSphere
Microsoft Hyper-V Server
Citrix XenServer Free
Proxmox VE
Oracle VM

Virtualized Linux with Windows:
coLinux
andLinux
Portable Ubuntu Remix

Physical to virtual machine conversion:
VMware vCenter Converter Standalone
Disk2vhd 
Paragon Go Virtual

Steady state using Windows features:
Creating a Steady State by Using Microsoft Technologies
Windows 7 SteadyState solution simplified!
Wioski 
Steadier State

Other:
VMDetectGuard
Introduction to light virtualization

Read/Post comments

Information:
Understanding tech language: The difference between malware and a virus
Not All “Viruses” Are Viruses: 10 Malware Terms Explained

Guides:
How to Know If Your Computer Is Infected
How to Clean An Infected Computer
The Basics of Manual Malware Identification and Removal
Elitekiller
Select Real Security
Majorgeeks: 1; 2
Bleepingcomputer
Geeks to Go
Deletemalware
Remove-Malware.com
overclock.net
MakeUseOf
How to remove a virus when your computer won't work

Forums:
Bleepingcomputer
Dslreports
Malware Removal
Geeks to Go
What the Tech?
Tech Support Forum
Majorgeeks

General-purpose scanners that use signatures:
Subsections follow.

1. Applications that work within a Windows installation:
Subsections follow.

1.1. Information:
Best Free Trojan Horse Scanning And Removal Software
Best Free Spyware And Adware Remover
23 Free On-Demand Virus Scanners (with reviews)
11 Free Online Virus Scanners (with reviews)

1.2. One scanning engine:
Subsections follow.

1.2.1. Can remove malware (for the free version, if there is also a paid version):
9-Lab Removal Tool
Avira Command Line Scanner; Scancl GUI
Avira PC Cleaner
Cezurity Antivirus Scanner
ClamWin; ClamWin Portable
ComboFix
Comodo Cleaning Essentials
Dr.Web CureIt
eScanAV Anti-Virus Toolkit
ESET Online Scanner
F-Secure Online Scanner
Kaspersky Virus Removal Tool
Malwarebytes Anti-Malware
Zemana AntiMalware
McAfee Stinger
Microsoft Malicious Software Removal Tool
Microsoft Safety Scanner
Norascan
Norton Power Eraser
Panda Cloud Cleaner; Panda Cloud Cleaner portable version
RogueKiller
Sophos Virus Removal Tool
Spy Emergency (trial; on-demand functionality is still available after trial period is over)
Spybot - Search & Destroy; portable
Superantispyware; portable
Trend Micro Anti-Threat Toolkit
Trend Micro HouseCall
Trend Micro Sysclean (command-line and GUI scanner)
Vba32 Console Scanner (command-line scanner)
VIPRE Rescue (command-line scanner)
Webroot SecureAnywhere Antivirus (trial; good at removing malware)
Zillya! Scanner
Quickheal
Botfree EU -list
Adlice Diag

1.2.2. Can't remove malware (for the free version, if there is also a paid version):
Bitdefender 60-Second Virus Scanner
Bitdefender QuickScan
BullGuard Online Virus Scan
Kaspersky Security Scan
McAfee GetSusp
McAfee Security Scan Plus
Norton Security Scan
Panda ActiveScan
Quick Heal Online Scan

1.3. Multiple scanning engines:
Subsections follow.

1.3.1. Can remove malware (for the free version, if there is also a paid version):
Emsisoft Anti-Malware
Emsisoft Commandline Scanner
Emsisoft Emergency Kit
HitmanPro (can't remove malware after trial period is over)
herdProtect
Multi-AV Scanning Tool
AntivirusMulti: review; download

1.3.2. Can't remove malware (for the free version, if there is also a paid version):
Metascan Client
WinMHR

2. Live media:
Kaspersky Rescue Disk
Bitdefender Rescue CD; Creating a Bitdefender Rescue CD on a USB flash drive
Avira Rescue System
Dr.Web LiveDisk
F-Secure Rescue CD
Panda Cloud Cleaner Rescue ISO; Panda Cloud Cleaner rescue USB drive
AVG Rescue CD
Windows Defender Offline
eScan Rescue Disk
Arcabit Rescue Disk
Zillya! LiveCD
Vba32 Rescue
Comodo Rescue Disk
ESET SysRescue Live
G Data BootMedium (on Tools tab)
Sophos Bootable Anti-Virus
Trend Micro Rescue Disk
Avast Rescue Disk
Ubuntu Malware Removal Toolkit
Comprehensive List of 26 Bootable Antivirus Rescue CDs for Offline Scanning

Integrate multiple live media/ISOs into one live medium/ISO:
Sardu
YUMI
XBOOT
Easy2Boot

Scanners that use non-signature techniques:
Subsections follow.

1. General:
HitmanPro (use Early Warning Scoring mode to avoid use of signatures)
Microsoft System File Checker; Run System File Checker Offline
AVZ Antiviral Toolkit: home (translated to English); download (translated to English)
Norton Power Eraser
McAfee GetSusp
Malware Scene Investigator
RogueKiller
Quick Heal DNAScan
Norascan
NoVirusThanks Malware Remover
Hidden CMD Detector
DensityScout
Universal Virus Sniffer: English version; home (translated to English); review
TrustWalk

2. Alternate Data Streams:
StreamArmor
ADS Spy
StreamFinder
ADS Tool
AlternateStreamView

Anti-PUP (Potentially Unwanted Program):
What does Potentially Unwanted Program mean?
Best Free Spyware And Adware Remover
AdwCleaner
Junkware Removal Tool
Bitdefender Adware Removal Tool
Adware Removal Tool - www[DOT]techsupportall[DOT]com/adware-removal-tool/
Force Byte Detector
Toolbar Cleaner; review
avast! Browser Cleanup
Auslogics Browser Care
Smart Toolbar Remover

Anti-ransomware:
What Ransomware is and How to Deal with It
How to Deal with the Ransomware Called CryptoLocker
Ransomware: how to remove it, even when the computer does not boot?
How to Remove Ransomware
Removing 'Police-themed' Ransomware
Kaspersky WindowsUnlocker; Banner Removal
Unlock codes
HitmanPro.Kickstart (feature of HitmanPro, which removes malware only during trial period)
id Ransomware

Anti-rootkit:
Best Free Rootkit Scanner and Remover
How to Remove a Rootkit from a Windows System
Kaspersky TDSSKiller
GMER
GMER MBR rootkit detector
aswMBR
Malwarebytes Anti-Rootkit
Sophos Anti-Rootkit
VBA32 AntiRootkit
Kernel Detective
SpyDllRemover
Trend Micro RootkitBuster
Bitdefender Rootkit Remover
SanityCheck
McAfee Rootkit Remover
RootRepeal
Rootkit Unhooker
NoVirusThanks Ring3 API Hook Scanner
catchme
Oshi Unhooker
ESET Hidden File System Reader
AntiSpy
Getting rid of MBR Rootkit's (bootkit)
NoVirusThanks Anti-Rootkit
wincheck
Packed Driver Detector
ListParts
PC Hunter
PowerTool
List of Anti-Rootkits
15 AntiRootkits to Detect and Remove Malware that Uses Rootkit Technology
13 top best free rootkit removal (anti-rootkit) programs

Specialized applications:
Subsections follow.

1. Individual applications:
RKill
Detekt
Remove Fake Antivirus
RegAuditor
RemoteDLL
UnDLL 
SecureMybit DH Scan
Simple Machine Protect

2. Applications from anti-malware vendors:
Bitdefender
Kaspersky: 1; 2
ESET
Symantec
AVG
Quick Heal
K7
G Data (see Tools tab)
Trend Micro
Avira
McAfee

Single file analysis:
Subsections follow.

1. Information:
How to Tell if a File is Malicious
What Else Have You Just Downloaded?

2. Online scanners that use signatures:
Subsections follow.

2.1. Information:
11 Free Online Virus Scanners (with reviews)

2.2. One scanning engine:
Dr.Web Online Scanner
FortiGuard Online Virus Scanner
avast! Online scanner
ThreatExpert Online File Scanner
NANO Antivirus Online scanner
Comodo File Verdict Service ; Valkyrie Uploader

2.3. Multiple scanning engines:
VirusTotal ; VirusTotal Uploader
VirusTotal Scanner
PhrozenSoft VirusTotal Uploader
VT Hash Check
Jotti's malware scan ; JottiQ
Virscan
Metascan Online
Gary's Hood Online Virus Scanner
Hyperball
Crystal X
Sigcheck; SigcheckGUI

3. Non-signature techniques:
Subsections follow.

3.1. Without executing the file:
PeStudio
PeSweep
ExeScan
Malware Analyzer
Portable Executable Scanner
Sigcheck; SigcheckGUI
FileAlyzer
Comodo File Verdict Service ; Valkyrie Uploader
Pescanner
FileScanner
VirusTotal (see other tabs) ; VirusTotal Uploader
Norton Power Eraser (Advanced Options -> Reputation Scan)
Hyperball
Peek 

3.2. Online behavioral analysis:
ThreatExpert
GFI sandbox
Comodo Instant Malware Analysis
Comodo File Verdict Service ; Valkyrie Uploader
Anubis
Joe Sandbox
Xandora
ViCheck
Payload Security
Malwr

Signature definition files:
Avast
AVG
Avira
Bitdefender
ClamWin
Comodo
Emsisoft
F-Secure
IKARUS
K7
Kaspersky
MalwareBytes
McAfee
Microsoft
Nano
Panda
Quick Heal
Sophos
Spybot
Superantispyware
Symantec
Trend Micro
Twister
VIPRE
Zillya

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Alternative browsers:
Best Free Web Browser
Brave
Vivaldi
CentBrowser
Google Chrome
SRWare Iron
Comodo Dragon
CoolNovo
Yandex.Browser
Firefox
Waterfox
Opera
SeaMonkey
Epic Browser
Pale Moon
MultiMi
Comodo IceDragon
QtWeb
Dooble
SlimBoat
Superbird Browser
Celensoft Super Web
CyberDragon Browser
Spark Security Browser

Alternative PDF readers:
Best Free Non-Adobe PDF Reader
PDF-XChange Viewer
Foxit
Sumatra

Alternative media players:
Best Free Media Player
PotPlayer
VLC media player
KMPlayer
Media Player Classic - Home Cinema
UMPlayer
ROX Player

Alternative image viewers:
Best Free Digital Image Viewer
FastStone Image Viewer
Irfanview
Picasa

Alternative office suites:
Best Free Office Suite
LibreOffice
FreeOffice
WPS Office Free
Zoho Docs
Google Docs

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AV uninstallers:
List from Eset
ComputerHope

Versatile cleanup tool:
RegRun Reanimator
Ultra Virus Killer
IObit Advanced SystemCare
AutoClean

Process killing:
Advanced Process Termination
KillProcess
ProcX
ProcessKO
SuperF4
Kill Frozen Programs
Kill Process
Process Assassin
Task ForceQuit Pro
KillEmAll

File shredders:
Best Free Hard Drive Eraser
Eraser; EraserDrop Portable
Quick Erase
UltraShredder
File Shredder
Secure Wipe
Free File Wiper
WipeFile
TweakNow SecureDelete
Secure Eraser
Any File Remover
Blank And Secure
SDelete
Permanent File Delete
Moo0 File Shredder
Freeraser
Zer0
xShredder
File and Directory – Scramble and Jettison
Puran Permanent Delete
File Shredder (Kakasoft)
Securely
Free Secure File Eraser
Quick Crypt
More

Wipe deleted files:
Prevent restore
Moo0 Anti-Recovery
WipeSpace
Files Terminator Free

Hard disk wiping:
Darik's Boot & Nuke
Secure Erase - HDDErase
Active@ KillDisk
PC INSPECTOR e-maxx
Disk wipe
Roadkil's Disk Wipe
WipeDisk
MHDD
HDD Wipe Tool
Puran Wipe Disk
PC Disk Eraser
Hardwipe
EASIS Data Eraser

Formatting disks:
Bypass Hard Disk Encryption Software and Format Your PC
Any Drive Formatter
HDD Low Level Format Tool

Ramdisk:
Dataram RAMDisk
ImDisk Virtual Disk Driver
SoftPerfect RAM Disk
Bond Disc
VSuite Ramdisk
Gavotte Ramdisk
More

Versatile tool for removing infection traces at bootup:
BlitzBlank
Threat Killer

Unlocking files:
Best Free Undeletable File Remover
Unlocker
IObit Unlocker
LockHunter
WhoLockMe
Tizer
Emco UnLock IT
NoVirusThanks File Governor
UnlockMe
How to check what process is your holding external device

File killing:
Pocket Killbox
FileASSASSIN
Avenger
Emco MoveOnBoot
Delete Doctor
FilExile
Reboot Delete File Ex
Guide for killing files

Killing registry entries:
RegASSASSIN

Registry editing:
Best Free Registry Editor
Registrar Registry Manager Lite
Regalyzer
RegSearch
RegistryViewer
Yet Another Registry Utility
Windows Registry Recovery
Registry Commander
RegMagiK
Run Regedit as SYSTEM to Solve Error While Deleting Key

System cleaning:
Best Free PC Cleaner
Best Free Browser Scrubber
CCleaner; CCEnhancer; CCleaner Cloud
PrivaZer; Shellbag Analyzer & Cleaner
Wise
DiskMax
BleachBit
Temp File Cleaner (OldTimer)
Easy Cleaner
ATF-Cleaner
CleanUP!
FCleaner
KCleaner lite
Wipe
System Ninja
Browser Cleaner
Belvedere
Free Internet Eraser
Xleaner
OSPC
Ainvo Disk Cleaner
AppCleaner
FMS Temp File Cleanup
Moo0 Disk Cleaner
DrivePurge
Windisk
Sys Optimizer
Jet Clean
Eusing Free Internet Window Washer
Empty Temp Folders
Windows Wiper
CleverCleaner
UnCleaner
FCorp Cleaner++
HLP Free PC Cleaner
Puran Disk Cleaner
Puran Delete History
PureRa
DriveTidy
Cyber-D's Autodelete
WinPrefetchView
DisCleaner
Oshi Cleaner
Synei PC Cleaner - www[DOT]synei[DOT]com/items/products/pc-cleaner
Advanced Disk Cleaner
nCleaner
Auto Cleaner
FileLab Windows Cleaner

Duplicate cleaning:
Best Free Duplicate File Remover
AntiTwin
Duplicate Cleaner
Auslogics Duplicate File Finder
LookDisk
DupScout
Search my Files
NoDupe
CloneSpy
Duplicate & Same Files Searcher
FileMany
Puran Duplicate File Finder
Image Comparator
Primitive Duplicate Finder
AllDup
MindGems Fast Duplicate File Finder
Fastest Duplicate File Finder

Maintenance & optimization:
Best Free Tune-up Program For Computer
WinUtilities
Glary utilities
Ashampoo WinOptimizer
360Amigo
Comodo system cleaner
TweakNow PowerPack
SlimCleaner
Eusing Cleaner
PowerTools Lite
Cleanup Assistant
JetBoost
Toolwiz Care
System Mechanic
Advanced Uninstaller Pro
Wise Care 365 Free
dMaintenance
Anti Tracks Free
Puran Utilities
EaseUS CleanGenius Free
EnhanceMy8
SystemNanny
Baidu PC Faster
Synei System Utilities - www[DOT]synei[DOT]com/items/products/system-utilities
JetClean
Kingsoft PC Doctor

Tweaking tools:
Mztweak
Ultimate Windows Tweaker
True System Security Tweaker
WinBubble
Advanced System Tweaker
TweakNow WinSecret
XdN Tweaker
Fresh UI
Quick Config
TweakIE9
EnhanceMySe7en
Windows 7 Little Tweaker
GIGATweaker
Tweak Me!
FCorp Tweakers
OpenWith Enhanced
Profile Relocator
Delprof2

Shell extensions:
Best Free Context Menu Extensions list
ShellExView; ShellMenuView
FileMenu Tools
Right Click Enhancer
Context Menu Editor
Moo0 RightClicker
MMM free
ShellNewHandler

Uninstallers:
Best Free Program Uninstaller
Revo uninstaller; guide
Zsoft uninstaller
IObit Uninstaller
Add/Remove Pro
InstallRite
EMB uninstaller
UnInstall Cleaner
Comodo Programs Manager
Advanced Uninstaller Free
Easy Uninstaller
Absolute Uninstaller
GeekUninstaller
Puran Uninstaller
Wise Program Uninstaller
Should I Remove It?
Windows App Boss
Simnet UnInstaller

Uninstall programs packaged with Windows Installer in Safe Mode:
SafeMSI
Uninstall Programs Packaged with Windows Installer (MSI) in Safe Mode

Tracking registry and files changes when installing software:
8 Tools to Track Registry and File Changes by Comparing Before and After Snapshots

MRU list deleting:
MRU-Blaster

Removing unwanted (preinstalled) Windows software:
PC Decrapifier
Slimcomputer
Decrap
Decrap My Computer
Antivirus removal: 1; 2
Uninstallers (removal tools) for common Windows antivirus software
Antivirus Program Removal Thread
AppRemover
AV Uninstall Tools Pack
Antivirus Remover
JavaRa (remove old versions of Java)
Old versions of Flash
.Net Framework Cleanup Tool
How to uninstall Office 2003, Office 2007 or Office 2010 suites if you cannot uninstall it from Control Panel?
Remove Office 2007; Remove Office 2010
OldChromeRemover
Google Software Removal Tool
List of uninstallers

Disk defragging:
Best Free Disk De-fragmenter
Toolwiz Smart Defrag
Auslogics
Windows 7 & SSD: defragmentation, SuperFetch, prefetch

Other:
ProEject
EjectUSB
USBOblivion
OpenedFilesView
Safely Delete Unused MSI and MST Files from Windows Installer Folder
Program Install and Uninstall Troubleshooter Tool Replaces MSICUU2
Dev Eject (detect file locking the USB drive)
How to Allow the Uninstalling of Programs in Windows 7 Safe Mode

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Guides for securing your PC:
Best Free Security Diet Plan
Gizmo's Security Wizard
Gizmo's Guide to Securing Your PC
Securing Your PC and Data
Cyber Security Tips
Computer and Data Security Guide for Windows
CKnow Virus Tutorial
Invincible Windows
10 services to turn off in MS Windows XP
Windows 10: which services to disable?
How to disable the Autorun functionality in Windows; more: XP; Vista
Creating a secure domain policy in Windows
Security Beacon – Security Check List
See also in this list: My Choices

Standard (limited) user account:
Why you should not run your computer as an administrator
Windows Vista's Least-privilege User Account
Configuring Windows 7 for a Limited User Account

User Account Control (UAC):
Understanding The Windows 7 UAC
Auto-elevate for admin
TweakUAC
UAC Tweak
UAC Controller Tool
UACController
Norton UAC Tool
Get Rid Of UAC Prompts With Microsoft’s Application Compatibility Toolkit
Scheduled task shortcut
UAC Trust Shortcut
LOGINstall
UAC Pass Automatically Creates UAC Free Shortcut

Running a program with different privileges or as different user:
Three Tips for Running Programs as Administrator in Windows 7
PsExec
StripMyRights
1-defender
RunInsideLimitedJob
RunasRob
RunasSpc
Sudo for windows
suDown
SuRun
PowerBroker Desktops
SuperExec
Raise My Rights
AdvancedRun

Anti-executable:
Use a Software Restriction Policy (or Parental Controls) to stop exploit payloads and Trojan Horse programs from running
NSA's Software Restriction Policies guide - www[DOT]nsa[DOT]gov/ia/_files/os/win2k/application_whitelisting_using_srp[DOT]pdf
Software Policy
AppSamvid
AppLocker; MrBrian's AppLocker rules
Parental Controls
Bouncer (formerly known as Tuersteher Light); Bouncer developer's blog
Process Blocker
Process Guard
Trust-no-exe
Winsonar
Xyvos WhiteList Antivirus
AskAdmin
Application Blocker
Task Blocker
Simple Run Blocker
Pretty Good Security
Using Comodo Internet Security as an anti-executable
VoodooShield

Protection for registry:
NoVirusThanks Registry Guard Service
NoVirusThanks Registry Guard

Anti-exploit tools:
Microsoft Enhanced Mitigation Experience Toolkit; NEMET
Malwarebytes Anti-Exploit Free
Crystal Anti-Exploit Protection

Hardening tools:
Simple Windows Hardening
SecureMyBit
SysHardener
Hard Configurator
ConfigureDefender
Vispa
xpy
Harden-It
SafeXP
xp-AntiSpy
Security & Privacy Complete
Seconfig XP
Samurai
Accounts Tuner
Windows Worms Doors Cleaner
Safe_Admin

Protection against specific vulnerabilities:
.LNK Shortcut Antivirus
.LNK G Data
.LNK Sophos
CryptoPrevent
Bitdefender Anti-CryptoLocker
Heartbleed

USB autorun disabling:
Panda USB and AutoRun Vaccine
Flash disinfector
Thumbscrew
USB Immunizer
Protect My Disk
USB Protector
AutoRun Antivirus Pro
Ntfs Drive Protection

USB firewall:
USB Pratirodh
No Autorun
Antirun
McShield
Net Studio USB FireWall
Autorun Eater
Ninja Pendisk!
MxOne
USB WriteProtector
USB Drive Antivirus
USB Flash Drives Control
Pen Drive Locker / Unlocker
USB Guardian
Free USB Disk Security
Perfectly Protected USB Flash Drive
Nomesoft USB Guard
USB-AV Free
Windows USB Blocker

USB protection (other):
Bitdefender USB immunizer
USBDummyProtect
USBVirusScan
busdog
Ratool
Smadav

Script file protection:
Script Defender
ScripTrap

Running program with specific integrity level:
Runasil
Chml and Regil

 Improved Group Policy editor:
Doug's Windows XP Security Console
Polsedit

File & folder properties:
FaJo XP File Security Extension
Attribute Changer
NTFS Permissions Tools
PathLock
NTFS Permissions Reporter
NTFS Permissions Explorer
SetACL

Check for privilege escalation:
AccessEnum
AccessChk
Dark Elevator
AccessScanner

Hardware security features:
Determine Processor Security Feature

Data Execution Prevention (DEP):
Turning DEP on
DEP Tools

Structured Exception Handling Overwrite Protection (SEHOP):
Turning SEHOP on

Buffer overflow protection and/or address space randomization (ASLR):
WehnTrust
BufferShield
Comodo Memory Firewall

Anti-keylogger:
LMT Anti Logger
SpyShelter
Snoopfree
Ghostpress
DataGuard AntiKeylogger
Zemana AntiLogger Free
KL-detector
PSMAntiKeyLogger
MyPlanetSoft Anti-Keylogger
What is the Best Anti Keylogger and Anti Screen Capture Software?

Key scrambling:
KeyScrambler Personal (FF,IE)

Shutdown prevention:
ShutdownGuard

File change protection:
SensiveGuard
CoreForce
MZWriteScanner

Anti dialer:
Emsisoft Anti Dialer
Dialer shields
AntiDialer

Prevent other users from deleting files/folders:
Prevent
System Protect

MBR protection:
nProtect MBR Guard
EMBRLock

Other:
Protect Windows with pfSense and VirtualBox
NoVirusThanks Smart Object Blocker
Driver Radar Pro

 

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Versatile monitoring and maintenance tool:
System Nucleus
QuickMon
Marxio Timer
Windows Inspection Tool Set
Sysmon

System monitoring and diagnostic:
Best Free System Information Utility
System Explorer
System Information for Windows
What's Running
Change Analysis Diagnostic tool
EVEREST Home Edition
Fresh Diagnose
System Spec
Multimon
Hijack Hunter
System Monitor II
PowerGUI
SystemReport
RegistryReport
SimpleSysInfo
SYS Informer
Sys Information
Karen's Computer Profiler
Xyvos System Explorer
System Information Tool
SystemInfo
SysFile
Son of Snoop on Steroids
WMI-Explorer
Kiwi System Info
BgInfo

Hardware monitoring and diagnostics:
LookInMyPC
PC Wizard
HWMonitor
Sisoft Sandra lite
HWiNFO
SpeedFan
Speccy
CPU-Z
SF Diagnostic Tool
WinAudit
System Information Viewer
Novabench
Crystalmark
Hardware Freak
MiTeC System Information X
Quick Performance Monitor
Auslogics BenchTown
SharpSpecs
thilmera7

Hardware, network and software inventory:
Lansweeper
Spiceworks

Process/startup/etc scanners:
Best Free Process Viewer
Best Free Startup Manager
Autoruns; ASEPMonitor
Process Explorer
Comodo Cleaning Essentials
DTaskManager
Glint
Process Hacker
OTL
Silent runners
Remote Process Viewer
Eusing Utilities
Startup control panel
WinPatrolToGo
Startup Guard
Autostart Explorer
Ez-PC-fix
Atool
Security Autorun
Starter
Startup Manager
Bill2's Process Manager
Ainvo Startup Manager
Auslogics Task Manager
Oolauncher
WhatInStartup
ProcessEye System Utilities
Task ForceQuit Pro
Startup Delayer
TaskManager.xls
System Tray Cleaner
DDS
Free Startup Manager
Puran Startup Manager
Task Manager DeLuxe
SterJo Task Manager
My Startup Delayer
SterJo Startup Patrol
Chameleon Task Manager Lite
Tizer
Kiwi application monitor
Listsp
Anvir task manager
StartupEye
StartupMonitor
Startup Sentinel
Registry Alert
Adlice PEViewer

Process/startup/etc scanners with analyzing help:
ESET SysInspector
OSAM Autorun manager
RSIT
Sreng
HiJackThis; help; portable
OLTPE
Emsisoft HiJackFree
FreeFixer
Hijack Hunter
Run Scanner
Runalyzer
Autorun Angel
x-ray PC
Soluto
StartUpLite
TaskPatrol
Startup Inspector
Universal Virus Sniffer: English version; home (translated to English); review
Quick Startup

Services:
Smart
Advanced Win Service Manager
ServicesSuite
Windows Service Monitor
Service Trigger Editor
Puran Service Manager
svchost.exe Lookup Tool
Easy service optimizer

Device & driver analyzing:
ServiWin
Pserv.cpl
DevManView
DriverView
Device Remover
GhostBuster; review
How to Make a List of the Installed Drivers on a PC

Monitor DLLs:
RegDllView
InjectedDLL
Static Import Finder
Svchost Process Analyzer
FileMap by BB
ListDLLs

Realtime process monitoring:
Whitelist Cloud
Process monitor
ProcessActivityView
SpyMeTools
Top Process Monitor
Fileinspect Sidebar Gadget
Moo0 System Monitor
ExecutableTracker
El Jefe
Process Logger Service

File/folder (hard disk activity) monitoring:
Tiny Watcher
Glint
Directory Monitor
Watch 4 Folder
TheFolderSpy
File Watcher Utilities
What's my computer doing?
FileChecker
AFICK
SysTracer
DiskPulse
Moo0 File Monitor
FolderChangesView
NT Filemonitor
Spy-The-Spy
HDD-Profiler
FingerPrint
Notify
MoniDIR
Track Folder Changes
Windows Explorer Tracker
LastActivityView
Recent Files Scanner
Check5
unhide
Free Folder Monitor
Phrozen Windows File Monitor
Monitor with win7 group policy

Monitor registry and file changes:
MZWriteScanner
RegShot; RegShot Unicode
TrackWinstall
SpyMeTools
RegFromApp
Windows System State Analyzer
WhatChanged
InstallSpy
SystemSherlock
RegMerge
DiffView
RegistryScanner
CRegistry Comparison

Searching files and processes:
file.net
SystemLookup
File Research Center
Process Library
Bit9 FileAdvisor
SANS Institute: Hash Database
ViCheck
Team Cymru
Is This File Safe?
Kaspersky Application Advisor

File type inspector:
TrID; TRIDNet
MediaInfo

Monitor hard disk/SSD:
Best Free Hard Drive Health Monitoring and Diagnostic Programs
CrystalDiskInfo
HD Tune
HDDScan
PassMark DiskCheckup
Acronis Drive Monitor
DiskAlarm
Disk Alignment Test
EASIS Drive Check
SSD Life
Macrorit Disk Scanner
HDDExpert

Monitor memory:
RAMMap
MKN MemoryMonitor
PerfView (also for CPU)
RAMExpert

Monitor CPU:
Process Lasso
Process Tamer

Monitor video card and GPU:
GPU-Z
GPU Caps Viewer
RivaTuner
GPU Shark

Monitor USB activity:
USBDeview
USBLogView
IntelliAdmin USB History Viewer

Group Policy settings:
How to See Which Group Policies are Applied to Your PC and User Account
Group Policy Settings Reference

Event/log viewers:
What information appears in event logs?
EventLog Inspector
MyEventViewer
Windows Event Log Viewer
EventSentry Light
SnakeTail
Advanced Log Viewer
Event Log Explorer

Checksum calculation:
Best Free Hash Utility
Hashtab
MultiHasher
FileVerifier++
HashMyFiles
Checksum Verify
IgorWare Hasher
HashSlash
HashGenerator
ExactFile
MD5 & SHA-1 Checksum Utility
Hashcalc
Karen's Hasher
md5deep and hashdeep
checksum
File Checksum Tool
Marxio File Checksum Verifier
Febooti Hash & CRC
Moo0 Hash Code
Quick Checksum Verifier
VSCryptoHash
QuickiHash
Md5summer
Download Hash Verifier
SDHash
Microsoft File Checksum Integrity Verifier
SFV.net
Hash'em all!
HashCheck
How cryptographic hashing functions work

Search utility:
Best Free Desktop Search Utility
UltraSearch
Everything
Copernic Desktop Search
Wise JetSearch
Locate32
Agent Ransack
DocFetcher
neoSearch
LAN Search Pro
InSight Desktop Search
Mo-Search
Ultra File Search
Miner Mole
VX Search
Quick Search
FileSearchEX
SearchMyFiles
Effective File Search
SwiftSearch
MasterSeeker
Mastering Windows Search using Advanced Query Syntax 
RegScanner
AstroGrep
FileSearchy
grepWin
Dropout

Computer forensic tools:
Forensic Toolkit
Memoryze; Audit Viewer
Mandiant Redline
OSForensics
Disk Investigator
DEFT Linux
CAINE
SIFT Workstation
analyzeMFT
Windows File Analyzer
TCHunt
Encrypted Disk Detector
Fedora Security Lab
Collection of free forensic tools: 1; 2

Integrity checking:
System File Checker tool (sfc /scannow); Run System File Checker Offline
How to Repair Windows 7 System Files with System File Checker
SFCList
Integrity Checker
Rizone File Checker
MicEnum

Digital certificates:
How To Check System Files For Digital Signatures
kSign
How to obtain a digital certificate for free
abylon SELFCERT
AnalyzePESig
ListModules

Monitor errors:
DebugView
WinDbg
WinCrashReport
WhatIsHang
Windows Journal Parser

Resource editor:
Resource Hacker
Dependency Walker
ResEdit

Manage drives:
Drive Manager
USB Manager
FCorp Drive-Thru

Monitor computer usage:
Blackbox Express; review
Spyrix Personal Monitor
Spyrix Free Keylogger

Test system stability:
Heavyload
System Stability Tester
StressMyPC
Video Memory stress Test
Prime95
OCCT
GS Data Generator
CPU heater
FurMark

Other:
ObjMon
Handle Tracer
RequestTrace
RecentFilesView
ShellBagsView
Process Notifier
cFosBark
ProcessThreadsView
API Monitor
WinAPIOverride32
FileInfo
How to Manage Super-Hidden Windows System Files
Hyperball
MindGems Folder size
FS1 collection of tools

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Introduction:
How to fix a computer that won't start
How to fix PC
How to restore, refresh or reset your PC
Windows Startup Settings (including safe mode)
Windows hangs or freezes
Recovery:the last step in total data security
When Some Websites Do Not Open On Your Computer – Troubleshooting Guide
How to check if system Is 32-bit or 64-bit (x86 or x64)
System Update Readiness Tool
How to Repair a Windows 7 System with an Installation Disc

System Restore:
Quick Restore Point Maker
System Restore Explorer
Restore Point Creator
Fix System Restore Calendar
Automatic System Restore Maker

Troubleshooting/diagnostic:
How to troubleshoot a problem by performing a clean boot in Windows
Resolving blue screen errors in Windows 7
BSOD Index; Bug Checks (Blue Screens) 
Demystifying the 'Blue Screen of Death'
Blue Screen of Death Survival Guide: Every Error Explained
Windows Stop Errors or Blue Screens Guide and Resources
Windows Error Codes
System Error Codes
Events and Errors Message Center
Microsoft Exchange Server Error Code Look-up
Windows Error Lookup Tool
Error Messages for Windows
Carrona.org
Memtest86+
MemTest86
Windows Memory Diagnostic
Victoria
MHDD
SF Diagnostic Tool
Problem Steps Recorder
Beep Codes Viewer
See also in this list: Test system stability
See also in this list: Monitor errors

Versatile tools for troubleshooting/rescuing:
Windows Repair Tooolbox
Wise PC 1stAid
Farbar Recovery Scan Tool
Microsoft fix it center; portable
Admin Swiss Knife Suite
TechTools
NirLauncher
Windows System Control Center
Windows Repair (All In One)
KZTechs.COM Software Suite
d7
Advantage-PC Fix
PC Tools by Davis PC Mechanics
Helge’s Switchblade
GEGeek Tech Toolkit

Memory dump:
Overview of memory dump file options for Windows
How to Create a Full Memory Dump
How to analyse memory dump
volatility

Repairing XP:
Recovering Windows XP using the Recovery Console
How to install and use the Windows XP Recovery Console
Repair XP
How to Perform a Windows XP Repair Install

Windows rescue discs/USBs:
Download Windows 7, 8.1 or 10 ISO Images Direct From Microsoft
Create a system repair disc
Installing Windows 7 System Recovery Disc onto USB Flash Drive
Create a WinPE (Vista or 7) without WAIK
WinUSB Maker
GImageX

Rescue discs:
UBCD4Win
Rescatux
Trinity
Ultimate Boot CD (UBCD)
Hiren's boot cd; download
Paragon Rescue Kit
SystemRescueCD
Knoppix
BartPE
BootDisk
OTLPEStd; Installing OTLPE on a Flashdrive
Secured2k's Boot CD
INSERT
Ubuntu Rescue Remix
Lazesoft Recovery Suite Home
Lazesoft Windows Recovery Home
f4ubcd
More

Linux live CD:
Lightweight Portable Security
Puppy
Slax
Webconverger
Finnix
Privatix Live-System
Cybershield-OS
KNOS Demo

Disk management:
Parted Magic

Partition/disk recovery:
Minitool
TestDisk
Partition Find & Mount
Eassos Recovery Free

Partition software:
Best Free Partition Management Software
Easeus
MiniTool
Paragon
Gparted
AOMEI Partition Assistant Home
Cute Partition Manager
Ranish Partition Manager
PartitionGuru Free
Macrorit Disk Partition Expert Home Edtion

Fixing MBR:
8 Free Tools to Backup and Restore the Master Boot Record (MBR)
Fixing MBR

Boot CD registry editor:
PC regedit

BIOS:
How to enter BIOS
How to set BIOS to boot from the CD
Changing Your Computers Boot Order
Easily Install FreeDOS in USB Flash Drive for BIOS Flashing

Safe Mode:
How to Start Windows in Safe Mode
How to easily enter safe mode in windows 8?
BootSafe
Enable booting in safe mode
SMFixer
Repair Windows Safe Mode

Solve problem drivers:
Driver Fusion
BlueScreenView
Whocrashed
Identify Which Service or Driver Failed During System Startup
Using Driver Verifier to identify issues with Windows drivers for advanced users; Driver Verifier
Driver Reference Table
See also in this list: Device & driver analyzing
See also in this list: Updating/searching for drivers

Recover a hanging system:
Antifreeze

Repair Internet connection:
Troubleshoot network connection problems in Windows
Fix Internet Connection after Malware Removal
How can I reset the Hosts file back to the default?
Complete Internet Repair
WinSock XP Fix
Winsockfix
Lspfix
MiniToolBox
Farbar Service Scanner
Autodebug for Winsock
Repairing of broken internet connection
Reset-TCPIP
Connectivity Fixer
Avira DNS Repair-Tool
Repair Winsock & DNS Cache
NetChecker
Why Can't I Connect?
3DP Net (network drivers)

Restore corrupted system files/settings:
Subsections follow.

1. General:
Re-Enable
FixWin Utility
7 quick fix
Remove Restrictions Tool
XP Quick Fix Plus
Dial-a-Fix
RefreshPC; review
Tweaking.com
Virus Effect Remover
Windows medkit
MBR Regenerator
Quick Disaster Recovery
Turn off “Autorun” and “Default Share” download
How to Repair a Windows Image (DISM tool)
See also in this list: Integrity checking

2. File association:
Fix corrupted .exe association: 1; 2; 3; 4; 5; 6; 7
File Association Fixer; File Association Fixes for Windows 7
File Extension Fixer (ExeFixer)
Default Programs Editor
Types
Repair .lnk (Shortcuts) File Association
Broken shortcut fixer
Unassoc

3. Permissions:
GrantPerms
Fixpolicies
Reset Registry Permissions
Permissions Time Machine

4. Security settings:
How do I restore security settings to a known working state
Security Restore

5. Removable storage:
DVD repair
USBOblivion
DriveCleanup

6. Additional:
How to Restore Missing Default Shortcuts in the Windows 7 Start Menu
Microsoft .NET Framework repair tool
Recycle Bin back to desktop
RestoreTaskBar

Repair corrupted IE:
How to reinstall or repair Internet Explorer in Windows
Repair IE
SF IE Restoration
Repair Internet Explorer

Restore Task Manager:
Task Manager Fix
Enstella Task Manager Enable Tool

BIOS password recovery:
How To Reset, Remove, Clear or Reveal CMOS BIOS Security Password
Manually Reset BIOS Password Like a Hacker to Access CMOS
BIOS Password Removal for Laptops
CMOS De-Animator
PC CMOS Cleaner

Recover installation keys:
Magical Jelly Bean Keyfinder
Recover Windows key for unbootable system
SoftKey Revealer
ProduKey
LicenseCrawler
RockXP
Win Key View
WinKeyFinder
Advanced Tokens Manager
CD Key Seizer
Lazesoft Windows Key Finder
Recover Windows Key for unbootable system with Hiren's boot cd

Recover/reset Windows passwords:
How to reset windows account password
Kon-Boot
Cain&Abel
Ophcrack
PCLoginNow
Lazesoft Recovery My Password Home
Reset a Windows 8 Password without using any third party software

Recover other passwords:
Forgot Your WiFi Password? How to Find It in Windows
Reveal Passwords Hidden Under Asterisks
Reveal a Password in your Browser with a Simple Trick
Password Recovery Tools
Windows Password Recovery Tools
Recover router password
Routerpwn 
WifiSlax
WebBrowserPassView
Advanced Password Recovery
hashcat
John the Ripper
Online Trillian Password Decoder
Hash Kracker
OTFBrutusGUI
aBhacksPsw Lite

Recover documents:
Recover Word documents
Recover Excel documents
Recover Excel/Word documents
Recover ZIP-files
ZIP repair
How to recover corrupt Microsoft Word files

Clean & update Windows install CD:
nLite
RT Se7en Lite
RVM Integrator
Win Toolkit
Windows 7 Component Removal (beta)
vLite
WinFuture xp-Iso-Builder
NTLite
Create An Integrated Up To Date Windows 7 Install Disc

Make bootable Linux USB:
UNetBootin
LinuxLive USB Creator - LiLi
MultiBootUSB
Universal USB Installer

Make bootable Windows installation USB:
Windows 7 USB/DVD download tool
RMPrepUSB
A bootable USB
WintoFlash
MakeItBoot
WiNToBootic; review
Rufus
WinUSB-Maker
DriveDroid; guide
A Bootable USB: Freeware to Create Bootable USB Drive to Install Windows Vista and Later

Windows reinstall guides:
How to Rebuild your Computer
Windows reinstall
Install, reinstall, or uninstall Windows
installing windows xp from a usb key
No-reformat, nondestructive reinstall of Win7
See also in this list: Tools for speeding up (re)install

Other:
CheckDiskGUI
How to use SysPrep to Generate Unique SID before Cloning
How To Fix “BOOTMGR is missing” Error in Vista and Windows 7
Windows Leaks Detector
Restoring Factory Hard Drive Capacity
The Backup Failed when Creating System Image in Windows 7
How to initialize a hard drive in Windows 7
Manually Reset or Clear Dirty Bit in Windows without CHKDSK
Boot an ISO directly from the Windows Boot Manager
How to Fix Problems When Windows Installer or Uninstaller doesn't work

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Collections of tools:
Malicious code analysis
Advanced Process Analysis and Identification System
NeSSi2

Antivirus laboratories:
Subsections follow.

1. General:
How to Report Malware or False Positives to Multiple Antivirus Vendors
support@emsisoft.com
newvirus@kaspersky.com
virus@avira.com
UploadMalware.com
False Positive Report
X-Ray (submit files simultaneously to many labs)
More

2. Online form:
Kaspersky
BitDefender
ESET
F-Secure
Microsoft
Avira
AVG
Dr.WEB
GFI
Sophos
Lavasoft
Emsisoft
eScan
Zoner

Feature settings tests for anti-malware programs:
Feature Settings Check for Desktop Solutions
Eicar AntiVirus test file

Tests for specific infections:
DNS Changer
Conficker
Mahdi
Palida Narrow (for Gauss): 1; 2
GameOverZeus

Test spyware:
Spycar
Scoundrel Simulator

System shutdown test:
ZeroDay test

Keylogger/screencapture/webcam etc. tests:
Zemana
Anti-Keylogger Tester (AKLT)
SpyShelter
Simple keylogger leaktest
Microsoft
javascript-keylogger

HIPS/firewall tests:
Comodo
Matousec; Matousec Personal Firewall Tests Analyzed

Buffer overflow test:
Comodo

Firewall/port tester:
Thunderspy
ShieldsUP
AuditmyPC 
Hackerwatch 
SG Security Scan
MBTEST

Router crash test:
Router Crash Test

DNS security test:
DNS Nameserver Spoofability Test
Web-based DNS Randomness Test

Email:
GFI Email Security Test
Analyse Email Header To Show Route Taken

Other security tests:
Test my PC
PC Flank
BrowserSpy
AutoSandbox Test Tool
Vulnerability Test File
Proof-of-Concept Shell Link
Bypass Windows 7 x86/x64 UAC Fully Patched
Bypassing Windows AppLocker using VB script in Word and Excel
Need a PoC to Test Your Security Setup? Not Necessarily…
THC-SSL-DOS
PC Security Test

Anti-rootkit tests:
Hideproc
Demo Rootkits

Process termination:
Simple process termination leaktest

Browser tests:
Browserscrope
Popup Check
PopupTest
Panopticlick
BrowserLeaks

Test sites:
AV-Comparatives
AV-TEST
CheckLab
Virus Bulletin
ICSA Labs
West Coast Labs
Anti-Malware-Test.com
Shadow Server
PCSL - PC Security Labs
Remove-malware
MRG Effitas
Antivirusware
Matousec
Kareldjag
eThreatz Automated Malware Testing

Info and tools on malware analysis:
Malware Threat Center
Malzilla
AMTSO
SARVAM 
Simseer 
#totalhash 
ThreatExpert Online Side-Effect Scanner
Kahu Security
More

Real-time analysis for sandboxed malware:
Buster Sandbox Analyzer
Noriben

Extractors:
Universal extractor
StuffIt Expander
ExtractNow
MSI Extractor

Malware samples and hostile sites:
Malware Domain List
Clean MX realtime
Malc0de Database
VirusSign
MalwareBlacklist
Malware Patrol
Phishtank
CRDF Threat Center
Exposure
Scumware
Xylibox
More

GSI parser:
Getsysteminfo

View HTTP request and response header:
Web sniffer
Modify Headers (FF)
HTTPNetworkSniffer
HTTP Request Logger (FF)

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Introduction:
Krebs’s 3 Basic Rules for Online Safety

Windows system security analyzing:
NeXpose Community Edition
Microsoft Malware Prevention troubleshooter
Microsoft Baseline Security Analyzer
Microsoft Security Compliance Manager
Nessus
Belarc Advisor
Protector Plus
WinUpdatesList
Attack Surface Analyzer
OPSWAT Security Score

Updates for installed programs:

Best Free Software Update Monitor
SUMo
Ucheck
VulnDetect
Appupdater
Software Informer
Kentarin
FileHippo.com Update Checker
Software-UpToDate
CNET TechTracker
DownloadPlex.com Software Updater
Patch My PC
SysInternalsUpdater
Software Update
FreewareUpdater
AppSnap
Heimdal free 
WinApp_Manager
USSU Unlimited
Npackd
OUTDATEfighter
Calendar of Updates
RSS feeds: 1; 2; 3; 4; 5

Updates from Microsoft:
Microsoft Update Catalog (IE)
Security updates are available on DVD
Shavlik Patch Google Gadget
Ryan VM's pack
AutoPatcher
Windows Updates Downloader
WSUS Offline Update
PortableUpdate
Windows Update MiniTool
Windows XP SP4 Unofficial
Registry hack enables continued updates for Windows XP

Updates for single programs:
Alternative Flash Player Auto-Updater

Trusted download sites:
Best Freeware Download Sites

Java security:
How to protect yourself from Java-based malware
Verify Java version
Is Java Exploitable?
How to Unplug Java from the Browser
Java zero day = time to disable Java, in your browser at least
How to disable the Java web plug-in in Internet Explorer; .reg file
See also in this list: Updating browser and add-ons

Updating/searching for drivers:
How To Find Drivers for Unknown Devices in Windows
UnknownDevices
Unknown Device Identifier
Drivermax
SlimDrivers
Device Doctor
3DP Chip
Ma-Config
DriveTheLife
See also in this list: Driver backup

CD with all current drivers for Windows:
DriverPack Solution
DriverPacks.net; review
3DP Net

Tools for speeding up (re)install:
Ninite Multiple App Installer
Allmyapps
All in One Runtimes
FreeApps
Soft2Base
SSDownloader
Milouz Market
Windows Post-Install Wizard
McRip SystemFiles
VC Redist Installer
Pokki
Chocolatey
DDownloads

Website security:
"This site may harm your computer". How to recognize and defeat website infections
Quttera WordPress Malware Scanner
Acunetix Web Vulnerability Scanner
Qualys FreeScan
Triton
HackerTarget.com
Netsparker Community Edition
CloudFlare
Detectify
Checklist To Prepare Yourself In Advance of a DDoS Attack
Google Hacking
See also in this list: Website monitoring/analysis

Penetration testing:
Metasploit Framework
Mantra
OWASP Zed Attack Proxy Project
Burp Suite
Watobo
Wikto
w3af
Websecurify
HackBar (FF)
Exploit-Me
Kali Linux
BackTrack
BackBox
ThePacketMaster Linux Security Server
security tools distribution
Operator
PHLAK
Arudius
AttackVector Linux
Parrot Security OS
Retina Community

SSL Analysis:
Comodo SSL Analyzer
Qualys SSL Server Test
SSLCertScanner
Fingerprints 

Other:
ExploitSearch.net 
FormasaAuditor SaaS Vulnerability Management
Tamper Data (FF)
DOMinator (FF)
DOM Snitch (Ch)
Dll Hijack Auditor
ProcHeapViewer
HeapLocker
Hard drive firmware update utility
ScanNow for UPnP
BinScope

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