Just updated my windows 7 and now i got a black screen and a thing on the bottom right hand corner saying windows 7 build 7601 is not genuine. I have tried all the solutions and the last thing offered to me was to buy another key......I have windows 7 ultimate and am not looking to spend another $200 for something i should already have.
In my search i came across a thing called Wat Remover. I looked into it and it seems interesting but far to many sketchy sites for my untrained eye. Any help would be appreciative.