Recently my computer has been slowing down, my CPU has been idling at 100%!! I used Ad-Aware and Microsoft Anti-Spyware, McAfee Virus Scanner, Diskeeper, Registry Mechanic, PC Rescue 2.0, and Tuneup Utilities.
I think that if you have that little sticker that came with XP and you sent it back to microsoft they might give you a new cd and cd key and disable the old CD key. that is what quickbooks did with my dad because he actually accidentaly shredded his quickbooks hew wasn't paying attention and though it was an old adio cd and accidentaly shredded it. I love that sig!