I have searched all of the previous bootcamp threads but haven't seen this issue addressed. Two months ago I purchased a MacBook Pro and an iMac, both to be used for work purposes. I installed bootcamp on each and bought a brand new copy of Windows XP with SP2 to install from a reputable source, our office IT consultants. I was told by our office IT consultant that the copy of Windows XP may or may not allow an install on both a laptop and a desktop, that "it would all depend". I installed the same copy of Windows Office on each. My MacBook Pro laptop continues to run Windows just fine. The IMac, however, when booted up in Windows mode, immediately indicates that a new Windows key code is required without in any way that I can discern specifying if it is "asking" for a new key code for XP or Office. I tried to enter both key codes and both are rejected. So here is my dilemna. I don't want to shell out the money for both a new copy of MS Windows XP and MS Office when one of them is probably what I need, not both. My first thought is that Office is likely the problem (since I installed the same copy on each), but given that the key code prompt is immediately upon booting up the computer in Windows mode, I am worried it might be the XP that is the issue. Is there any way to tell for sure without spending hours on the phone with MS?