I received a 2002 HP desktop with XP as the OS. It was free, so the price was right. LOL However, it seems to have a virus that I can't get rid of. Would replacing the hard drive get rid of the problem, or is the virus stored in the RAM some how? I've replaced hard drives in desk tops before so this wouldn't be difficult for me, and spending $80 for a desktop that works and does what I need it to do would be great! Thanks for your input!