I would look in the device manager for any errors or question marks before I started trying to uninstall MS updates. Any recently installed hardware or software? It is possible that you could roll back a driver or two and return things to ordinary.
Makai- I'm with you! If the hardware is working fine, and I don't see a compelling reason to install an update, I don't apply them either. Too many times software and hardware updates cause more problems, or problems where none existed. But, I prefer to let the MS updates do what they want (mostly) by default. The few times MS updates have disabled the syste, using a good SR point has resolved the problem.
Since Mesquite doesn't know specifically which update might have caused the problem, and MS Updates are so notorious for cranky uninstalls, I would try to solve the problem less invasively at first.