PC Tonic

See our updated post HERE.

[General Note]
You must never use more than one antivirus on a single computer. There are very high chances that they will cause driver conflicts and may even crash your system.

Avast! Home Edition ~ Alwil
*****
Available for: Windows Vista/XP/NT 4/2000/ME/98/95
Home | Registration | Skins | Download.com | FileHippo

AVG Free Edition ~ Grisoft
*****
Available for: Windows Vista/XP/NT/2000/ME/98
Home | Download.com | FileHippo

PC Tools Antivirus Free Edition ~ PC Tools
****
Available for: Windows Vista/XP/2000
Home | Download.com

AntiVir PersonalEdition Classic ~ Avira
*****
Available for: Windows Vista/XP/2000
Home | Download.com | FileHippo

ClamWin* *** ~ ClamWin
***
Available for: Windows Vista/2003 Server/XP/2000/ME/98
Home | Download.com | FileHippo

Comodo Antivirus 2.0 Beta* ** ~ Comodo Group
***
Available for: Windows XP/2000
Home

BitDefender Free Edition*** ~ SoftWin
***
Available for: Windows XP/2000/ME/NT/98
Home

Norton Security Scan*** **** ~ Symantec
***
Available for: Windows Vista/XP
Google Pack

[Notes]
* ClamWin and Comodo antivirus are full version products.
** Comodo antivirus is in BETA stage.
*** ClamWin, Norton Security Scan and BitDefender Free do NOT provide real time protection. However you can integrate ClamWin with the open source WinPooch antispyware to get real time protection. WinPooch home page.
**** Norton Security Scan is available only with the free Google Pack.