Hi R W Curry,
The Fall update introduced a new feature for Windows 10.
All editions of Windows 10 that pre-date the Fall update, would close all open apps when the user shut down or chose to restart their computer.
In the Fall update, Microsoft changed this so that any apps that were open or are regularly used by a User will automatically open on the restart of a computer.
To avoid this, you can either manually ensure you have closed all instances of Word via Task Manager,
before you shutdown or restart computer.
Alternately, you can
press your
Windows key +
M to minimize all open windows, then
click once on your
Desktop to give it focus and now press
Alt +
F4 together to open the pre-Fall update shutdown dialog:
View attachment 7619
The pre-Fall Update shutdown dialog will close all open apps if you shutdown or restart computer.