That’s curious…Did you have this problem?
I know our schools haven’t updated yet so we haven’t had this bug. I hope they don’t update by the sound of it.
At our school we use a program called Deep Freeze on all lab computers that returns the system to original state as IT set them up each time the systems are rebooted. We have no trouble with viruses, unauthorized software or settings changes, or objectionable material appearing on the systems.
I intended this warning more towards personal computers but I guess it is relevent for anyone who has automatic updates enabled.
To disable automatic updates go to Start>Control Panel>Security Center
Of course if you computer already has the Microsoft Security Update KB918118 you will have to remove it.