Using the built-in settings, you can also choose the viewing mode for your displays. For example, if you're using a second monitor, you can expand the main screen to the new display, or you can mirror both monitors, which is an ideal option when showing a presentation. If you're using a laptop with an external monitor, you can even disable the built-in display, and only use the second monitor as your primary.
To change the viewing mode on Windows 10, use these steps:
Under the "Multiple displays" section, use the drop-down menu to set the appropriate viewing mode, including:
After you complete the steps, you may need to repeat steps No. 4 and 5 to set the display mode on the remaining monitors. Also, note that using these settings, you can make any of the monitors as your primary display.