AVG Anti-virus free edition is a well known anti-virus protection tool

AVG Free is available for download, free for home users

Bitdefender Standard is a powerful antivirus tool with features that best meet your security needs.

Ease of use and automatic updating make BitDefender Standard an "install and forget" antivirus product.

Stay protected with Norton AntiVirus 2007!

Safeguard your computer automatically from viruses, worms, and spyware.

avast! 4 Home Edition is a full-featured antivirus package designed exclusively for home users, non-commercial users. Both conditions should be met!