Well, with my major, I get free software, so I downloaded XP to put on my new pc, and when I installed it, it said it wasn't a verified copy. It didn't give me a CD Key for it or anything so I'm guessing I have to go buy a new OS. But Would I be able to buy a WIndows 7 Upgrade and upgrade a unverified copy of XP, or would I have to Buy a full new OS?
When you do the windows 7 custom upgrade, it will move your old data into c:\windows.old. In a manner of speaking, yes it does wipe your drive, but it backs up your data first. Programs are normally worthless at that point, as the registry and path files no longer match.