I am trying to push out Windows 8.1 Update 1 (KB 2919355) to a collection, containing all my windows 8.1 computers.
However, if I check the SCCM report, most of the computers (that all contain Windows 8.1 Enterprise or Pro) have a state of "Update is not required". A couple of machines got the update alright.
The update has not been superseeded, by any other update, and the update is for the x64 OS, and the OS of all machines is x64.
Does anyone have a clue with it's behaving this way, or what to do from here ?