Windows Server 2008 - error 80072efd

Problem with installation Windows 2008 updates.
http://www.puryear-it.com/blog/2012/07/27/windows-server-update-fails-with-error-80072efd/

"One issue which causes Windows Updates to fail with error 80072EFD is if the Windows Server is looking at itself or another Server on the network for the updates.

To  check this:

Click Start > Run > type “regedit” without the quotes, and accept the UAC prompt to continue
Navigate to HKLM\Software\Policies\Microsoft\Windows\WindowsUpdate
Look at the keys in that folder, if they look something like this:
“WUServer”=http://srv_name:8530
“WUStatusServer”=http://srv_name:8530
If this entries are listed under that folder, backup then delete the WindowsUpdate folder

Right-click on the folder and select “export” to save.
Delete the “WindowsUpdate” key from the registry at HKLM\Software\Policies\Microsoft\Windows.