Hi, I'm a newbie to the forum and I have read and reread many posts on this topic and I wanted to find out if I can get clarification. I just bought a MacBook Pro and I used Boot Camp to set up a windows partition. I used the OEM Win XP Home disc and couldn't activate, because (as I found out from here) I can only use the copy on the original hardware it came with. I read in one place (on this site) that I can call MS or use the phone activation line to get a new key by telling them that I reformatted my hard drive and the copy is still on the same computer. But, I read that this only applies to the retail copy, not the OEM copies. So, for anyone that can help, my questions are: -Can I get a new key with an OEM copy by telling them I reformatted my HD? -If I get a new copy, does it invalidate the key on my PC (which has the original key assigned to it) and cause it to become inactive? Any help will be appreciated.