I have been asked a few times now if I have seen the recent influx of problems with SCCM 2012 SP1 and WSUS. The error that's mentioned most often is the "Site component manager failed to install this component, because it
either can’t find or can’t configure Windows Server Update Services
(WSUS). Possible cause, WSUS service is not installed or running" error.
You will also see errors 1016 and 4968 in the "WSUS Control Manager Component" the cause of these errors are due to some missing patches. Please apply the missing patches mentioned below, as without these the errors will keep appearing and you wont be able to add additional Software Update Points.
These patches do work, I installed them on my test lab and they solved the problem.
*Please note that these aren't available if you are on Windows Server 2012