2 years ago, I built my computer with an OEM copy of Windows 7 64 bit. In that time, I reinstalled it a few times before sticking with it until now. I'm going to be replacing my motherboard with a new one, and I saw somewhere that a new motherboard counts as an entirely new computer, and therefore I won't be able to install the same copy of Windows 7 I'm using now. Is that true? If so, is there a way to get rid of Windows before I change the motherboard? Or will I have to buy a new copy of Windows?