I have lost my original Windows XP Installation CD. A friend has lent me his CD, but I would like to know if I can retrieve the Product Key that I used (the one that was printed on the back of the CD's cover.)

Is there a way to make Windows tell you the Product Key which was used when Windows was installed?

Daz, July 2004

You will find a utility here which will display the Product Key number

http://www.mvps.org/marksxp/WindowsXP/prodkey.php

Paul, July 2004