Canonical: https://screensie.com/knowledge-base/hardware/displays/detect-second-monitor/

Make Windows search for a connected display. Open Settings > System > Display, expand Multiple displays, and select Detect. Follow the steps in order and.

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Hardware


# How to Detect a Second Monitor




## How do I detect a Second Monitor?




Open Settings \> System \> Display, expand Multiple displays, and select Detect.




Make Windows search for a connected display.




Updated 
September 2, 2026
Difficulty: Easy
Time: 6 min
Applies to: Windows, Windows 10, Windows 11


 


Follow the steps in order and stop if the screen or target does not match what is described. Use administrator access only when the task requires it.




**Before you begin**


Save open work. Confirm that you are working on the intended computer and that you are authorized to make the change.




## Check power and cable




Turn on the monitor, select the correct input, and reseat the cable at both ends.




## Open Display settings




Right-click the desktop and select Display settings.




## Detect the display




Expand Multiple displays and select Detect.




## Choose a layout




If detected, select Extend these displays, then arrange the numbered rectangles to match the desk.




## If it remains missing




Try another known-good cable or port and check Device Manager before installing any driver.




**Verify the result**


Repeat the relevant check and confirm the intended result before considering the task complete.


 


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