Hi! I have been having issues with my SP4 for about 3 days now. It started with my Adobe and Drawboard pdfs freezing, which is a different problem, but it progressed into my settings freezing, control panel freezing, and even Task Manager! I thought all these problems had something to do with a previous update, but I can't even access that to undo the update cause it freezes before I can even get to it. Help! I am a college student and I do everything on this machine. It has been extremely reliable for past 3 years and really need it every day of the week. Thanks for the help in advance.