How to fix your second monitor not being detected in Windows 10

When your PC refuses to detect an external monitor, this guide can help troubleshoot and fix common problems to get your secondary display working on Windows 10.

Typically, connecting a second monitor to your computer allows you to create a larger canvas to work with apps, for a better multitasking experience, to boost productivity, or improve your gaming experience.

Although adding another display is usually a straightforward process, it doesn't always work flawlessly. Sometimes, Windows 10 may not be able to detect the second monitor, and you may end up seeing error messages despite a good connection between your PC and the external display.

If you're having trouble getting an external monitor to work, there are several things you can do, including hardware troubleshooting, manually detecting the monitor, and updating graphics card drivers.

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