How to Mirror Two Monitors
When connecting dual monitors to a computer, Windows automatically assigns desktop extension as the default display setting. Desktop extension has its advantages, but it may not be ideal for your work or entertainment needs. If you don't want to extend your desktop or work solely from one monitor, you can mirror the monitors so they display the same image simultaneously.
Open the "Start" menu on the computer's task bar.
Click "Control Panel."
Enter "display" into the search box at the top of the window that opens. Then, select "Connect to an External Display" from the options you see.
Change the appearance of your display in the "Multiple Displays" section. Click the down arrow, and a list of appearance options will open in a drop-down menu.
Click on "Duplicate These Displays." Then click "OK" to exit the setup.
Tips & Warnings
- Click the down arrow of the "Orientation" and "Resolution" fields in "Display Settings" to edit your current orientation and resolution settings.