AntiVir Pers. Edition
AntiVir Pers. Edition
http://www.free-ac.com/
Avast! Home Edition
Avast! antivirus v4.8 represents a multi-award winning solution to virus protection, with anti-spyware and anti-rootkit technology built in for added security. it is available free for non-commercial, home use and with its fast, automatic updates, avast! antivirus is already being used by more than 50 million users worldwide to provide continuous protection against all forms of malicious software (malware).
http://www.avast.com/
AVG Free Edition
AVG Free Edition
http://www.free-grisoft.com/
ClamWin
Looking for free open source antivirus for windows? download clamwin free antivirus and get free virus scanning and free virus definition updates.
http://www.clamwin.com/
Etrust EZ Anitvirus
Etrust EZ Anitvirus
http://my-etrust.com/microsoft/vista