PC World recently published a series of reviews of antivirus software and also compared free applications with commercial ones. Personally, I believe you can be just as safe with freeware but not everybody will agree with that. As I have mentioned before, Gizmo’s Freeware is the premier place for information about free security software.
PC World puts Avast as the top of the freeware list, closely followed by Avira. Interestingly, Gizmo’s Freeware also picks these two as top selections but reverses the order with a slight preference for Avira. It also likes Microsoft Security Essentials, which is my favorite.
Like many others, PC World puts Symantec’s Norton 2011 at the top of the commercial list.