Description: This article will show you how to change the default main display on Windows 10 when using multiple monitors.

1. Right click anywhere on the open space on the computer desktop and select Display settings.
   
2. The Display menu will appear in a new window. Under Rearrange Displays, choose the display option to edit.
   
3. Scroll down and locate Multiple displays and then check the box for Make this my main display. The option automatically goes into effect upon checking the box.