XP: Find Your Windows Product ID / CD Key Code in the Registry

Posted November 30, 2003 by AlexTheBeast in Windows

Need your Microsoft product id but can’t find your original documentation?

We often need to know the product id but most of us never keep up with the original packaging which contains this vital number.

–Prior to XP:

Now, don’t go changing this number…

Navigate to:

The number is listed under ProductId

Look but don’t touch.


Thanks goes out to j.cox for pointing out the error (see comments below). We had forgotten about this “new feature.” Anyway, to get around this you can download and run the application required to view the XP install code found here:


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