WSUS uninstall is failing

Yet another issue I have seen a few times.  I am trying to uninstall WSUS (Windows Server Update Services) and I find out that someone deleted the WSUS database from the hard drive.  Without the database, the uninstall of WSUS will fail.

Here is the process I have successfully used every time to uninstall WSUS when the uninstaller fails.  This process will work on both Windows 2008 and Windows 2008 R2.

1. Open the Windows registry editor.
2. Navigate to HKLM\Software\Microsoft\Update Services\Server\Setup.
3. Change the value of “wYukonInstalled” and “SqlInstanceIsRemote” to 0 (zero).
4. Close the Windows registry editor.
5. Launch server manager and right-click on Roles.
6. Click Remove Roles.
7. On the Server Roles screen, uncheck “Windows Server Update Services” and click Next.
8. Click Remove.
9. When the uninstall wizard comes up, leave all three check boxes for database, logs and updates unchecked.  Proceed with removal.
10. Once WSUS is uninstalled, manually remove the WSUS content and/or database files from the hard drive.