12-12-16 windows update requires usserid & password to access my nas which has none.

[Midknyte]

Oh, so you didn't even install the Anniversary update yet.

If you really want to stop Windows Updates, the best way is to disable the Windows Updates service. Windows 10 doesn't have the same options as Windows 7.
http://www.thewindowsclub.com/turn-o...-in-windows-10