Well,I use windows XP with classic view.
I go to the control panel and double click on
Automatic Updates,then make my decisions.
I can't see your question beyond that.If you
choose turn off Automatic updates fine.
Otherwise choose a time and weekday to
have updates happen.
Assuming you did this recently could you
reboot in safemode and choose'Last known
Good Configuration'or, restore to an earlier
date by using restore?
You could read the below website information .
http://www.computerhope.com/issues/ch000589.htm