Free Antivirus Software

avast! 4 Home Edition is a full-featured antivirus package designed exclusively for home users and non-commercial use. Both of these conditions should be met! I have not tried it, but it is good to use it as backup antivirus software.

AntiVir^® PersonalEdition Classic for Windows 98/Me/NT/XP/2000/NT Linux/FreeBSD/Solaris

AVG Free Edition is available free-of-charge to home users.

国产免费杀毒软件东方卫士