Free Antivirus Software
ClamWin
ClamWin is a (world class) Free Antivirus for Microsoft Windows 98/Me/2000/XP and 2003. It provides a graphical user interface to the Clam AntiVirus engine. ClamWin Free Antivirus comes with an easy installer and open source code. You may download and use it absolutely free of charge.
http://www.clamwin.com/
AVG Antivirus
An extremely popular free antivirus programs. AVG Free Edition is for private, non-commercial, single home computer use only.
http://free.grisoft.com/
AntiVir
The AntiVir Personal Edition offers the effective protection against computer viruses for the individual and private use on a single PC-workstation. In order to make possible an easy operation, the AntiVir Personal Edition is developed to the essential points.
http://www.free-av.com/
Panda Activescan
This is an online virus scanner only. After running computer scan with the Antivirus software installed on your compuer, it's wise to get a second or third opinion from another scanner just incase your Antivirus missed anything. Panda Activescan also comes with a spyware scanner however it only removes viruses.
http://www.pandasoftware.com/products/activescan/
Trend Micro Housecall
This is an online virus scanner only. After running computer scan with the Antivirus software installed on your compuer, it's wise to get a second or third opinion from another scanner just incase your Antivirus missed anything. Housecall also comes with a spyware scanner and removes both viruses and spyware.
http://housecall.trendmicro.com/
Avast
Avast! antivirus engine scans for computer viruses, worms and Trojans. It can be used to scan any object you like files, memory, e-mails, web sites etc.
http://www.avast.com/
