Please read instruction carefully on those pages, as uninstalling may remove license file. Information may / may not provided in the information/direct download link.
1. Alwil Avast:
Avast Uninstall
2. AVG:
Avg uninstall-tools
3.Kaspersky:
Kaspersky Remover 2
4. BitDefender:
Uninstall BitDefender
5. F Security
Uninstall F Security
6. Norton:
Unistall Norton
7. Kaspersky
Unistall Kaspersky 1
Unistall Kaspersky 2
8. McAfee:
Uninstall McAfee
9. TrendMicro:
Uninstall TrendMicro
10. Windows Live OneCare
Uninstall Windows Live OneCare
11. Zone Alarm (save tool, run as administrator in Vista/7)
Uninstall Zone Alarm
Update 1:
ESET (NOD32): via. Arnaud1987
ESET (NOD32)
Update 2:
BullGuard:
BullGuard
Update 3:
Threatfire from PC Tools:
Threatfire from PC Tools
SuperAntispyware -
SuperAntispyware