Its a piece of junk!... every time I see a computer with it, it crawls, keeps interrupting users when it expires, difficult to uninstall, etc. etc. etc. I even suspect that they purposely put viruses in peoples machines to get them to purchase or renew the subscription!.. I prefer Microsoft Security Essentials. It doesnt degrade system performance, its free and regularly updated. What better anti-virus program could you get than by the same people who developed Windows, which makes for the best integration in anti-virus software!