Change Windows Update Settings
Windows Update allows Microsoft to automatically send you patches for Windows Vista. Patches fix things like security holes and theoretically make Vista run more smoothly. You can change the Windows Update settings to suit your needs.
Vista’s Security Center explains how to make sure that Windows Update is up and running. But if you want to adjust its settings, perhaps not installing new patches until you’ve had a chance to review them, follow these steps:
Click the Start button, choose All Programs, and choose Windows Update.
The Windows Update window appears.
Choose Change Settings from the leftmost pane.
Windows Update’s settings page appears.
Make your changes and then click OK.
Chances are, you won’t need to make any changes. But night owls might want to change the 3 a.m. automatic installation time.
Some experienced computer users select the option Download Updates but Let Me Choose Whether to Install Them. That option gives them a chance to view the incoming patches before installing them.