MedEd IT: Documentation - Windows 7 / Windows Vista Updates
Use your Start menu to check for updates
Windows Update for Vista is now included in the Control Panel.
1. Click the Start button, click All Programs, and then click Windows Update.
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2. From the left hand pane, click on Check for updates. You will see a progress bar on the middle of the page as it communicates with the Windows Updates server as it checks for updates. This process could take a few moments depending on how many updates are avaliable and needed. If updates are found, you will see an Update Now or Install Updates button. Click on this button. Once updates are installed, you may be asked to reboot your computer to apply these updates.
Optional, but recommended:
You can choose to manage how and when Windows installs updates. It is highly recommended to leave the default settings, as they are set to automattically download and install updates. From the Windows Updates screen, click on Change Settings from the left hand pane. The Change Settings window will appear, giving you control to manage Windows updates. Select the option to Install updates automatically (recommended) and choose a convenient time to download updates when your computer will be turned on. Click OK to accept the settings.
For more information on Windows Vista Updates, visit the Windows Updates page for Vista on the Microsoft site. 
For more informations on Windows 7 Updates, visit the Windows Updates page for Windows 7 on the Microsoft site.
