Background: C drive crashed, replaced w/a new drive, had lost my XP Home key, was loaned XP Pro by the data recovery folks to get up and running and to transfer my recovered data to my new drive. Now trying to replace that XP with another XP Home I just bought. Tried booting up from the new XP Home cd. Selected replace the existing with the new, stops part way and asks which version I want to install? It's looking for a version number. ????? Just before I did this, I reinstalled avg and it found a trojan, which it "healed", but then Windows (the loaned Pro version I had on there) wouldn't boot - the Windows screen would come up, b ut then it would go back into Startup. So, I figured I'd just replace the loaned XP Pro with my new XP Home, that's when I ran into the above prob lem. Without being able to start windows up, what do I do to install the new XP Home? Thanks!!