Disable automatic updating windows 7
Non-administrative users will be able to install all optional, recommended, and IMPORTANT update content for which they received a notification.
Users will not see a User Account Control window, and they do not need elevated permissions to install these updates, except in the case of updates that contain User Interface, End User License Agreement, or Windows Update setting changes.
In these extensions you will find the settings that you can use to configure how WSUS clients can interact with Windows Update to receive automatic updates.
Note This topic assumes that you already use and are familiar with Group Policy.
Specifies that a restart timer will always begin immediately after Windows Update installs IMPORTANT updates, instead of first notifying users on the sign-in screen for at least two days.
The restart timer can be configured to start with any value from 15 to 180 minutes.
If this policy setting is not enabled, users will always see an Account Control window, and they require elevated permissions to hide, restore, or cancel updates. Users will always see an Account Control window, and they require elevated permissions to do these tasks.
Options: if this setting is enabled, you can specify the time interval (in hours) that Windows Update waits before checking for updates.
Specifies that only logged-on administrators receive update notifications.