I am not very computer savvy. I have been running AVG Free and it has worked well. I get popups but they don't bother me too much. They offer a PC Tune-up but I need to buy it for About $40 for a year. It just gave me a message that some programs are running that are slowing down my computer (one was Turbo tax 2011) I don't mind the $40 but I'm just wondering if these type programs work?