If you’re not using WSUS then there are several things you can do to remove those gigabytes of updates that have accumulated. The best method of doing this is to disable WSUS instead of trying to uninstall it which may be a problem on SBS 2003 or SBS 2008. Here is how you do it:

• Open Windows Server Update Services in Administrative Tools
• Expand the server and click on Options
• Open Synchroniztion Schedule and change it to Manual
• Open Automatic Approvals and delete the automatic approval rule
• Expand Updates > All Updates. Select all updates, right click and select Decline
• Click on Options and Server Cleanup Wizard and run the wizard