I am getting a message upon boot up that the windows product key is invalid after a failed install of service pack 2. I was forced to uninstall service pack 2 and now I get the windows product key is invalid message. The message was not there before the attempt to install service pack 2. Windows is already been activated and it still says it is activated. Windows was purchased from a state university and is a valid copy of windows. What is up with this and how do I fix it?
