Antivirus removal tools are a staple in every tech's toolbox. Why? You'll end up using them more than you think.
However, some antivirus applications do not wish to go down easily – *cough* Norton *cough*. This is where Uninstaller tools come in handy. Only use these tools if normal methods fail.
You should make sure you have a backup of your important files before messing with these tools just in case something happens. You should run these tools as admin If you are using Vista and beyond. This is simply done by right-clicking the executable and choosing “Run as administrator.”
Avast! -> Avast Uninstall Utility
Avira Antivirus -> Avira RegistryCleaner
AVG Antivirus/Identity Protection -> AVG Remover
BitDefender Antivirus -> BitDefender Uninstall Tool
BullGuard Antivirus -> BullGuard Uninstall Tool
Dr Web -> Dr Web Remover
eScan Antivirus -> eScan Removal Tool
ESET NOD32 Antivirus -> ESET NOD32 Removal Tool (all languages)
F-Secure Products -> F-Secure Uninstall Tool
G DATA Antivirus Cleaner -> G DATA AVCleaner
IObit Software -> IObit BitRemover
K7 TotalSecurity/AntiVirus -> K7 Remover Tool
Kaspersky Lab -> Kaspersky Lab Product Removal Tool
Malwarebytes -> Malwarebytes’ Anti-Malware Clean Utility
McAfee Consumer Products -> McAfee AV/IS Products up to 2010 32bit, McAfee AV/IS Products up to 2010 64bit, McAfee AV/IS/Titanium Products for 2011+ 32bit, McAfee AV/IS/Titanium Products for 2011+ 64bit | Note: 2011+ product uninstallers require a password, novirus.
Microsoft OneCare (XP & Vista) -> Windows Live Onecare Cleanup Tool
Microsoft Security Essentials -> MSE Fix-It tool
Norman Virus Control/Security Suite -> Norman Uninstall Tool
Norton/Symantec -> Norton Removal Tool
Prevx 2.0/3.0 -> Uninstall Utility
TrendMicro’s HouseCall -> HouseCall Cleaner
Vipre Antivirus -> Sunbelt Software Uninstall Utility
WinPatrol -> WinPatrol Removal Program
Zondex Guard -> Zondex Uninstall Utility
Zone Alarm -> Zone Alarm Uninstall Tool
That's it. The most common antivirus removal tools. This will make your job a lot easier.