Check out Windows Live One Care http://www.windowsonecare.com/ .. i'm an experienced computer user, coming off of Norton and Trend Micro - and i actually dumped PC Cillin for this program. Many will call me crazy. But it interferes less in what i do while giving me ( best as i can tell ) the same level of security. It's simple stupid to configure and integrates itself with the windows firewall, explorer, and windows defender. It tunes up, defrags, backs up, scans, and protects. Get it while its free...