The Worst virus i ever had was a Rbot trojan, IT gave me a blue screen for my background and it comes with pop ups on Internet. I Knew the name because NOD32 picked it up, but didn't delete it(Come on i spent 300$ on that), so i ran a virus scan with NOD32 and it found both of them, and some extra i don't know about, But it kept happening, i scanned tough the hole computer, then i decided to format and start over,(recover disk) But instead of formatting, i just repaired with the recover disk, cleared the virus and i still got all my data. I still don't know why NOD32 didn't delete the virus