For over a week, at least 6 attempts to install KB3164398 have failed during Windows Update:
Critical Update for SQL Server 2016 MSVCRT Prerequisites KB3164398 - Error 0x80070643
This is blocking other needed updates from coming down.
How do I get this "road block" out of the way until Microsoft can find the time to withdraw it and replace it with one that will actually install?
If you think development is tough now, think how hard it was using punched cards :-)