Ok, Here is a good one. About many full moons ago when XP roamed the earth and reigned supreme I had found an article that had explained how certain codes were injected in the windows ISO image that would tell Windows at installation time, when the OEM key was entered, if it matched the ISO image you were using. If it did not you would get an error that the key was not valid (or something like that). So all you had to do was to change that code to mach the manufacturer key you were using and then it would work. So, a DELL OEM disk could in that way be modified and be used for HP, TOSHIBA etc. Well....I don't know if that is still doable for WIN 7/8/10 ....and I cannot find this info any more Anyone has anything to offer on this subject?