I was wonder what the big rush to become legitimate is lately ? Everytime I turn around someone wants there free version of Windows XP Professional made legit. And I have had may headaches in the process. But today I said "this is crazy, there has to be an easier way to do this". So after googling a little I came up with a tiny little piece of software from Microsoft called the Windows Product Key Update Tool. Which is exactly what I was looking for. It lets you easily change your key and fixes any tampered with files.
Thanks Microsoft and I give the tool One Thumb Up (Because who needs two ?)