How to Fix a Genuine XP Validation Error
- 1). Navigate to the Microsoft Genuine Advantage--Diagnostic Tool webpage (see Resources).
- 2). Click the "Start Diagnostics" button.
- 3). Click the "Run" button if asked whether you want to save or execute the file. The program will return with the reason for the validation error.
- 4). Follow the onscreen instructions to correct the error. For example, if the diagnostic tool indicates that your product key is invalid, you likely mistyped a key or two--re-enter the key to correct the problem.
- 5). Reboot your computer once the process is complete.
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