My laptop runs Windows 7 and is set to update automagically. Last night, and tonight, it did the usual "Installing updates, do not turn off" then at power on, "please wait, installing updates 0% complete" but it never progresses beyond 0%. After a short while disc activity ceases and the machine hangs. Re booting into safe mode and restoring to an earlier point recovers everything but if I leave updates on it just hangs at next reboot. It appears to be installing an new version of Silverlight any clues?