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.
By Tim Fisher, About.com Guide
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.