When you connect dual or multiple monitors to your Dell computer, Windows automatically detects the monitor and displays your computer desktop screen. You can then choose how you want your desktop screen to appear and customize the display settings such as display style, screen resolution, color depth, and more in Windows 11 and Windows 10., Level Up Your Desk: 8 Simple Ways to Improve Your Dual Monitor Setup. Once everything is set up, there's more you can do to make that multi-monitor setup work for you. 1. Arrange the Displays, How to set up dual monitors Step 1: Connect the monitor cables Simply plug your second monitor into a power outlet and connect its video cable to an available port on your PC., , , .