To check the product key for Windows XP, follow these steps:
- Click Start, then click Run.
- In the Open box, type “regedit” (without the quotes), then click OK.
- In the Registry Editor window, navigate to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
In the right pane, double-click the “DigitalProductId” value.The product key will be displayed in the Value data box.
The product key is a 25-character code that is used to activate Windows XP. It is important to keep the product key in a safe place in case you need to reinstall Windows XP.
