How I know if my windows XP that I bought 4 years ago is OEM?

If your key is on something like this: then it is OEM. If it is not, it may be retail, but there is still a possibility of it being an OEM key.

I was able to run an OEM copy of Vista Ultimate under bootcamp, I don't see why you wouldn't be able to run XP.

OEM XP SP2 runs fine in boot camp

macguru78 said:

I want to use it to run Boot Camp

Click to expand...

Boot Camp doesn't care - after all, it's just a drivers collection for Apple hardware. I only use OEM/SystemBuilder versions of Microsoft Windows and never had a problem with them.