I have used AVG free for years and never had a problem, also run Spybot S&D, and the combination, at least for me, has worked great. Norton, McCrappy, and others have just been a waste of time, also try Zone Alarm Firewall, I use the free versions and haven't had any problems. check them out get and you can get them at MajorGeeks.com all free - If it's free, It's for me!!!