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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