Cannot Activate Windows XP

Blank Activate Windows page in the Windows Product Activation Wizard.

Cause:

• This issue can occur for any one of the following reasons:
• Your registry is damaged or has been modified.
• Files became damaged during the Windows XP installation, or files are missing.
• You have a video resolution problem.

Important: This task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.

Note: If the 30-day activation window has ended, you can start the computer in Safe mode to complete these steps.