To duplicate your screen across monitors in Windows 11, open Settings > System > Display, click Identify to see which monitor is which, select the monitors you want to mirror, and choose Duplicate these displays in the multiple displays menu. Windows often only lets you duplicate two monitors at a time, though. To show the same image on all three, use your graphics card’s control panel (for example, NVIDIA’s Clone mode), or connect the monitors through an HDMI splitter or DisplayPort MST hub that mirrors the signal.
Method 1: Duplicate displays in Windows Settings
- Connect all three monitors and turn them on.
- Right-click the desktop and choose Display settings.
- Click Identify to show a number on each screen.
- Click the first monitor you want to mirror, then scroll to the Multiple displays menu.
- Choose Duplicate these displays (or Duplicate desktop on 1 and 2), then click Keep changes.
- Select the third monitor and choose an option: Extend to use it as extra space, or try Duplicate with the first pair if your PC allows it.
Shortcut: Press Windows + P and choose Duplicate to mirror your main screen. With three monitors, Windows applies it to the displays it can pair.
Method 2: Clone all three with your graphics card software
NVIDIA
- Right-click the desktop and open NVIDIA Control Panel.
- Go to Display > Set up multiple displays.
- Right-click your main display and choose Clone with, then select the other displays. If it doesn’t work all at once, clone one monitor, then add the third.
- Click Apply.
AMD and Intel
In AMD Software: Adrenalin Edition, look under Display for display configuration and duplicate options. In Intel Graphics Command Center, open Display > Multiple Displays. Options vary by driver version and hardware.
Method 3: Use a splitter or MST hub
An HDMI splitter (1 in, 3 out) or a DisplayPort MST hub set to mirror mode copies one video output to several screens at the hardware level. Windows sees only one display, so all three always show the same thing. This is common for store displays, classrooms, and events.
Tips for a clean mirrored picture
- Set all monitors to the same resolution, like 1920 × 1080, and the same refresh rate. Mirroring uses the lowest resolution that every display supports.
- Update your graphics driver if duplicate options are missing.
- Laptops may limit how many displays they can drive at once. Check your model’s specs.
Frequently asked questions
Why can’t I duplicate on all three monitors?
Windows and some graphics cards limit mirroring to pairs of displays. Use your GPU’s clone mode or a splitter.
Can I duplicate two monitors and extend the third?
Yes. That’s a common setup: duplicate displays 1 and 2, and set display 3 to Extend these displays.
How do I undo duplicate mode?
Press Windows + P and choose Extend, or change the option in Display settings.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.