JSI Tip 6182. How do I activate Windows XP by using a product key that is different from the one that you used to install Windows XP?

When you install or activate Windows XP, you must use a unique product key. If you use the original Windows XP CD-ROM to install Windows XP on a second computer, you must change the product key before you active the product:

1. Start / All Programs / Accessories / System Tools / Activate Windows.

2. Press Yes, I want to telephone a customer service representative to activate Windows and press Next.

3. Press Change Product Key and type the new product key. 

4. Press Update.

5. Press Telephone and follow the on-screen instructions.

NOTE: See Description of Microsoft Product Activation.

NOTE: See Frequently Asked Questions about Microsoft Product Activation.