The disks came in a package, the key was on it. I never used the key that was on my pc, I guess they thought that one was corrupt because of the problems. My goal is to upgrade to ultimate, but it looks as if upgrading from premium to ultimate would be cheaper (that's what I have found). So, i'd have to downgrade back to premium. But as you posted earlier, it looks as if I could do so without having to lose any existing software. My question is, do I downgrade to the disks key, or the factory, or does it matter. It seemed kind of difficult for someone that hasn't a lot of experience doing uninstalls and downgrades, but I am sure I could manage. I hope!