WINDOWS 10 - HOW CAN I HAVE TASKBAR SHOW ONLY ON MAIN MONITOR (DISPLAY)

The article that I found most helpful on this subject was at https://www.howtogeek.com/111488/how-to-tweak-the-new-multi-monitor-taskbar-in-windows-8/

Here are the steps that were revealed (shown there in Windows 8 - shown here in Windows 10)

1.  Position cursor over a part of the taskbar to the right of the start button.

2.  Right Click.

3.  Click on "Taskbar Settings"

4.  Go down the bar on the right until you see "Multiple displays"

5.  For the button under "Show taskbar on all displays", click to the left (OFF) position.

When done, the screen should look like this.