ComboFix is an aggressive expert virus removal program. They say you should only run it with supervision but if you don't have a computer expert around and you are suffering from an infection or you are not sure you have fully cleaned one up in the past, run it. Otherwise, save this one for when you have a virus. Its like a strong dose of computer Antibiotics. Please read the directions before running: http://www.bleepingcomputer.com/combofix/how-to-use-combofix It runs without any interaction. Just make sure to shut everything nonessential down, deactivate any current antivirus products you have on the machine. Then don't touch your machine while it runs.