I got a bunch of old computers from work but they gave them to me without hard drives or restore discs. I have hard drives. i tried to install with windows xp home service pack 2 discs but the license keys on the computers don't work. Could the keys be too old for SP2? So do I need a pre-Service Pack disc? Where can I get one? I even looked on torrent trackers and couldn't find a non-service pack xp disc.