Oh, and the amount of music files on your computer will not slow it. It's based on drive space, so what you need to check with that is basically how much space is on your MAIN drive (usually C), not your other external or additional drives. Basically the one you have Windows installed on. Mind you, when it starts to get full it usually gives you a warning. So we're back to Spyware. You could also restore your system, might help. Might not.
Also, Batlord? You are King Nerd you know, so don't try to pretend you're anything else, Mister "I would love to check out Metal Month II but there's this Thor comic I have to read..."