Please excuse me I am in Iraq and screwed up an install of windows to a removable drive on USB 2.0 and chose my C:\ drive and it reinstalled Win XP home. Now all the games that I registered before I left are nonworking. I had the system admin here put Pro on but it still doesnt help my only outlet which is my Sim City4 and some other DVD programs. Please cousel me on some recovery techniques I am a little rusty.

you'll need to reinstall your games b/c keys are stored on your registry and when you reinstalled your xp system they were deleted.

you can try to search through google where your game keys are stored on your registry but easiest way could be reinstalling the game that is not working (don't worry you won't loose your savegames reinstalling).

hope it helps

well if ya got previous OS copied on USB u can import the registry files from it.