Are you receiving any error codes whatsoever or wording explaining problems? Please follow the steps below. The test results will help us analyze the cause of your situation.
Download and run the utility at this link http://go.microsoft.com/fwlink/?linkid=52012 , then click the Windows tab, Copy to Clipboard, then paste the report into a New Post on this Forum.
Step 2 is tell us about the COA. Tell us:
1. What edition of Windows XP is it for, Home, Pro, or Media Center?
2. Does it read "OEM Software" or "OEM Product" in black lettering?
3. Or, does it have the computer manufacturer's name in black lettering?
4. DO NOT post the Product Key.
5. Please also provide a short description of the issue you are experiencing.
NOTE: The data collected with the Genuine Diagnostics Tool does NOT contain any information
that can personally identify you and can be fully reviewed, by you, before being posted.
Thank you,
Stephen Holm, MS