hey guys ive had windows 7 on my macbook for about a month now and i just got a problem come up to me, i loged onto my windows just yesterday and i found that it told me i do not have the full version of windows. i have a black screen with white writing on the bottom right saying. (windows 7 build7600 this copy of windows is not genuine) why does this say this and when i log in it tells me i do not have the full genuine version asking me to get it?? ;( what happened to my windows 7