Click the Change Product Key button at the bottom of this window.
Note: Don't fill out anything on this screen since this is part of a Windows XP activation process, something you may or may not be doing after your product key is changed.
Step by Step Guide To Changing the Windows XP Product Key
By Tim Fisher, About.com Guide
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- Click on Start and then Run
- Open Registry Editor
- Navigate to the WPAEvents Registry Subkey
- Click to Modify the OOBETimer Registry Value
- Select Part of the OOBETimer Value
- Change the OOBETimer Value
- Close Registry Editor
- Click on Start and then Run
- Open the Windows XP Activation Wizard
- Choose the Telephone Activation Option
- Click the Change Product Key Button
- Enter the New Windows XP Product Key
- Wait While the New Installation ID is Generated
- Reactivate Windows XP
- Confirm Reactivation of Windows XP
More on Windows XP Product Keys
All About Product Keys
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- Click the Change Product Key Button (Step 11 of 15)