Am I missing something here?

Or am I just uninformed, or otherwise, naive?

I am trying to use the XP disk (Pro) to fix problems I've been having. I chose upgrade, then put my numbers in.

Ummm, it says the numbers are invalid. They are the numbers I have!!!!!!!

Whats going on? They are MY numbers.........how the heck did they become invalid? What am I going to do to fix this thing if the numbers won't work? And why won't they work when they worked about 6 months ago.

Can someone make sense of this? Is there something I'm missing?

Baffled in Morgantown,
Sharon

Guess I'd be calling Microsoft Support. I cant see why your key would suddenly become invalid. Are you using the original disc?

Install and run Belarc Advisor to make sure that the key you are trying to use is the same one in your installed version of windows.

http://www.belarc.com/free_download.html

Make sure that you are typing the characters correctly. Sometimes I type them wrong and experience the same as you. Is your edition from a store or someplace like an online auction? I have heard of people buying from an online auction and having this problem to learn from Microsoft that it was not truely authentic.