hi, I am new to this. I installed a critical windows update a few weeks ago and windows installer keeps coming up. It started me in at a log in page, and i screwed that up but was able to fix that but my system restore doesn't work, my add and remove programs are in letters now and I have no idea how to tell what programs they are. I can't shut off windows update as it is grey and won't let me shut it off. Please help