I have a quick question regarding the XP product key and registration/activation. I have a computer with XP pre-installed that is all messed up and needs XP reinstalled before it will run again. The recovery disk that came with my computer can only do a factory restore. I am going to take my XP disk from another computer and install it on the damaged computer (without activating it obviously) so I can back up a few important files before I do the factory restore. I just want to make sure that formatting my computer will erase any record of the second XP ever being installed, as I don't want to run into any weird licensing issues later on. Can anybody verify this for me?