I installed this security update that was coded as an important update on
Windows Update. After rebooting, the system went to a blue screen (error in
win32k.sys). It would not even boot in safe mode, so I had to boot from the
Vista CD, run a system restore and everything worked fine. Then, a few
hours later, Windows Update automatically installed the update again and on
reboot, again the same blue screen error. I had to run system restore a
second time to fix it.

Has anyone else had this problem? Is there any solution other than turning
off automatic update right now? How can MS screw up so bad on an update
that it forces to people's systems by default?