Sorry if this has been asked before. In January 2006 my old Toshiba laptop's XP crashed. Unfortunately I didn't have my recovery discs on hand and was pressed for time, so I just got a new full copy of Windows XP SP2 and did a full re-install, registering the key with Microsoft. Now that laptop has completely died (HD failure after 5 years) and I'm looking to replace it with a Macbook/MBP. Obviously I'd like to be able to re-use the XP I purchased with bootcamp, but is that possible after having registered it? I know supposedly it's not possible to use on more than one computer, but maybe that's at the same time? Is there some way to deactivate my previous install?