Quick note: The client had removed WSUS from their SBS 2011 server – don’t ask!
When trying to run Windows Update after removing WSUS from their SBS 2011 Server, our client received the following error in Windows Update: 80072EFD.
The 80072EFD error is a “network issue” error – ie, the server cannot find the update server. This is obvious considering the client removed WSUS from their SBS 2011 Server but the uninstall of WSUS did not remove stale registry entries.
A quick look in the system registry found that the server was indeed pointing to itself for automatic updates – aha!
** BEFORE PROCEEDING, MAKE SURE TO BACKUP THE FOLLOWING KEY “HKLM\Software\Policies\Microsoft\Windows\WindowsUpdate” **