The order would appear to have nothing to do with it:


1. Windows update was showing no important updates other than the WD update. If there was another KB that had to be installed, why didn't WU says so.


2, If I had not stumbled upon a reference to a no-name forum to "Try running the update from inside Windows Defender first", I'd still have the problem. When I read it, my the thought was that answer was pilled out of someone's posterior quarters as it wasn't on a technical forum, more of an "ask jeeves" kind of thing.