Wsus console fails to launch after windows updates/eventid 7053/the wsus administration console has encountered an unexpected error. This may be a transient error, try restarting the administration console.

Inrecently encountered an error on wsus server running on OS 2012 R2.  The KB3159706 was the cluprit. There are some manual configuration agter installing this update.

Go to c:\program files\update services\tools\wsusutil.exe postinstall /servicing. Wait for a few minutes.

Restart wsus service

Remove wsus from %appdata%\microsoft\mmc

The wsus console should now be working.

This solved the issue for me. Hope this helps someone.