Possible Duplicate:
What to do if my computer is infected by a virus or a malware?
My uncle has a lot of viruses on his netbook. I think you know how he got them.
Anyway, my job is to rid them and restart everything from fresh. He doesn't have any important stuff he wants, so I could reformat but nobody has installation disc (the netbook doesn't have a disc drive either). So far... I can't open a web browser without it crashing, what do I do?