You're off topic for this forum, which is dedicated to
Windows Live OneCare.
Your question may be better posed to one of the forums here, depending on your operating system.
Windows 7:
http://social.answers.microsoft.com/Forums/en-US/category/windows7
Vista:
http://social.answers.microsoft.com/Forums/en-US/category/windowsvista
XP:
http://social.answers.microsoft.com/Forums/en-US/category/windowsxp
However -- Control Panel/Automatic Updates would be the place to start. In your case, though, I would absolutely not turn off Automatic Updates. Not updating increases the
risk of a malware infection.
-steve
~ Microsoft MVP Windows Live ~ Windows Live OneCare| Live Mesh|MS Security Essentials Forums Moderator ~