My computer originally had windows xp home edition put on it, and i still have the certificate of authenticity that has my product key on it.
I never got the windows cd with the computer so i downloaded a copy off the net and installed it, Its Windows XP Home Edition SP2.
When i put in my product key now it says its invalid, is that because it installs sp2 right off the bat?
If so, is there a way to uninstall sp2 and sp1 so its just plain home edition so i can register it?
and if not, is it even possible to get it registered with my old key if i contact microsoft? (for free that is)