WSUS not working after installing KB2720211

Over the week, I have a problem on WSUS of my customers and struggled with that for awhile, I tried to install the KB2720211 and post-installation the WSUS crushed and didn’t work anymore, most likely it comes from the KB.

 

Got some error on event viewer like:

Error: Connection Error.  An error occurred trying to connect to WSUS server.

 

The solution steps are:

 

  1. To change HKEY_LOCAL_MACHINE\Software\Microsoft\Update Services\Server\Setup\wYukonInstalled from 1 to 0
  2. Then install the update again
  3. reboot the server
  4. change HKEY_LOCAL_MACHINE\Software\Microsoft\Update Services\Server\Setup\wYukonInstalled from 0 to 1
  5. reboot the server install update AGAIN
  6. And the WSUS now works.

 

That was important for me sharing this solution with you guys.

Hope it was necessary.

About Meir Peleg 337 Articles
My name is Meir Peleg, (Born 30/04/1991) live in ISRAEL. Live and breath IT world. Microsoft MVP Windows IT & VMware vExpert.