I tried and it told me I could not do it with my (oem) disk. Is there a way to use my retail version and then switch back to my oem #?
I never heard of such a thing. I bought oem Windows 7 to install on a friends computer that I had built previously. I have personally done a repair using the oem disk on that computer.
Now if it was because your using a different motherboard, that's a different story. You may need to call MS and get a new code. Tell them you had the P67 that was recalled.