AntiVir Personal Edition Classic

Fabulous free antivirus software, very effective at arresting those damned viruses without bothering with Miranda rights. The virus updating feature is excellent, and if you allow it to check for updates every day it updates very quickly. My only gripe is that you can't download the latest virus definition as a file so you can use it on several computers that have Antivir installed so yo don't have to do an online update on each machine. Aside from that little snag Antivir is the bee's knees!

AntiVir Personal Edition Classic's web site.