Volume licence (VLK) can be use on any computer because it doesn't require activation. you can install this on a million computers
you can go to MS to download updates,but if the think your computer is bootlegg, they won't let you update, but they won't mess with your computer. if you got your windows serial off of a keygen, you can still update as ms can't tell if it bootlegg or not. this is also true if you use a legit key and applied a crack, because you don't fill like calling ms for activation
however if you have a blacklist key (a keycode circulating around the net, and or the world), they will lock your computer up. don't even think about heading to windows update if you have this kind of windows