Keeping systems properly and promptly patched is an ongoing challenge for network administrators. Automating the process using Windows Server Update Services (WSUS) makes it easier to deploy important updates to Windows computers. But if you’re new to WSUS, you might not know how to get started. This TechNet article explains in step-by-step fashion how to use the WSUS administrative template to configure Group Policy options for WSUS.
http://technet.microsoft.com/en-us/library/dd939933(WS.10).aspx
To find out more about WSUS, see the Windows Server site within TechNet here: