Kate said:
how will i get my product key from windows xp? I had a "friend" who
wanted to have new xp installed on his computer and now he wants
computer back but has noo money to buy it from me. Do I have to
give up my xp for him or loose all his data while formating his
disk?
Your product key was never lost - although you did not state whether this
was a retail or OEM license of Windows XP...
I am guessing you formatted the drive when you installed Windows XP
originally (you mention NOTHING about performing an upgrade installation) so
you simply revert back to whatever OS was on the machine prior to you
formatting it using whatever method originally shipped with your friends
computer. That is if you don't plan on just giving a license freely.
Then - since you would have backed up the data before you formatted it
before - you copy that back.
If you upgraded from Windows 98/98 SE/ME - you may be able to roll-back.
How to uninstall Windows XP and revert to a previous operating system
http://support.microsoft.com/kb/303661