Fix Second Monitor Not Detected on Windows 10 [Solved]

April Cai, in Common error Tags: DriversWindows 10

Adding an extra display to Windows is one of the best ways to improve your work productivity or create a more immersive gaming experience.

But unfortunately for a lot of Windows 10 users, it doesn’t always work as it should. Quite a few people have reported an error message telling them their second monitor can’t be detected, even though they know the monitor works and the video output it’s connected to is fine.

If this is happening to you too, don’t give up hope. Usually it’s an easy problem to fix.

Why can’t Windows 10 detect my second monitor?

Usually it’s a driver problem. If your video driver is out of date, incorrect or faulty, Windows 10 won’t be able to extend or mirror your desktop to your second display. It’s also possible that your monitor driver is causing the problem.

How do I fix this error?

Here are 2 solutions you can try to fix this problem. You may not have to try both of them; try Method 1 first, and if it doesn’t work, try Method 2.

Method 1: Roll back to previously installed video & monitor drivers
Method 2: Update your video & monitor drivers

Method 1: Roll back to previously installed video & monitor drivers

Sometimes the latest drivers don’t work properly on Windows 10. To check if this is what’s causing your problem, simply roll back to a previous version of your video driver (aka ‘display driver’) and your monitor driver.
1) On your keyboard, press the Windows logo key  and X (at the same time) to invoke the quick-access menu.

2) Click Device Manager.



3) In Display adapters section, right-click on your display device software, and select Properties.



4) Select the Driver tab and click Roll Back Driver, then follow the on-screen instructions.



5) Go back to the Device Manager again, but this time expand the Monitors section, right-click on your second monitor, and select Properties.

6) Select the Driver tab and click Roll Back Driver, then follow the on-screen instructions.

7) When complete, restart your computer, and see if Windows can now detect your second monitor.

Method 2: Update your video & monitor drivers

If rolling back your video and monitor drivers doesn’t enable Windows 10 to recognize your second monitor, it’s likely that you’re using the wrong drivers altogether.

There are two ways you can get the right drivers for your video card and monitor: manually or automatically.

Manual driver update – You can update your video and monitor drivers manually by going to the manufacturer’s website for both your video card and your monitor, and searching for the most recent correct driver for each. Be sure to choose only drivers that are compatible with your variant of Windows 10.

Automatic driver update – If you don’t have the time, patience or computer skills to update your video and monitor drivers manually, you can, instead, do it automatically with Driver EasyDriver Easy will automatically recognize your system and find the correct drivers for your exact video card and monitor, and your variant of Windows 10, and it will download and install them correctly:

1) Download and install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click the Update button next to the flagged video driver and/or monitor driver to automatically download and install the correct version of that driver (you can do this with the FREE version).

Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system. (This requires the Pro version which comes with full support and a 30-day money back guarantee. You’ll be prompted to upgrade when you click Update All.)

4) Restart your computer and check to see if Windows 10 can now detect your second monitor.

That’s all there is to it. Hopefully one of these methods resolves your problem, and you can now extend your desktop to your second monitor, or mirror/project your laptop onto your second monitor.

Please feel free to leave your comment below if you have any questions.

Help Us Improve Article
  • Scott727

    This is the second time my dual monitor stopped working. I solved it the first time (several months ago) with a driver update. This time it suddenly stopped and all the drivers are apparently up to date. Running Windows 10 with Intel HD Graphics. Primary monitor is HP Compaq LA2205wg. Secondary monitor is LG 29UM58-P. I have an HDMI cable running directly from the HDMI 1 port to the CPU. The monitor says “No Signal” and the computer is not recognizing the secondary monitor. I have rebooted multiple times. I have tried to use “Roll Back Driver” but it is grayed out. The projection is set to “Extend Screen”.

  • Michael Slone

    I was unable to extend my screen – mind you the second monitor works, but only to mirror, when I tell Windows to detect second monitor, it says there isn’t one – when I use Win P I get an error – “Your PC can’t project to another screen. Try reinstalling the driver or
    using a different video card.”

    When I go to properties, Roll back is grayed out, using update driver gets me the standard Microsoft already has the best drivers answer – when I use device manager and remove the display adapter and reboot, I come back to the same thing.

    • Antony

      Micheal, my name is Antony, and I’m having the same problem, did you happen to fix your? And if is yes, how?

    • Anirudh Sethi

      hi,i am facing the same problem,any solution?

  • Ed Cooper

    I have an Hewlett Packard A7E32UTABA 90W Docking Station, and an HP laptop, and I’m running Windows 10. I connected 3 monitors to the docking station, however, it would only detect one. So I went to “Settings” to make sure all 3 of my monitors appeared under “Devices” and I added anyone that wasn’t. After returning to my desktop, then I did a right click on my desktop and then clicked on “Graphic Properties”, then I clicked on “Display”, then I clicked on the “Multiple Displays” option, then I clicked “Extended Desktop”, then I assigned each of the monitors to an individual drop down box in the “Select One or More Active Displays” section. And then Clicked “Apply” and now all 3 of my monitors are being detected.

    • Antony

      Hello Ed, my name is Antony, could you please send me a screen shot of the option of “Multiple Displays” on the Display option. I will very much appreciated if you could assist me. I have 3 days try to ge my laptop to recognize the two additional monitors, and all I can get it to do is to mirrow both monitor as one. If you could write me directly at my email, I will appreciated very much. My email address is resquivel2473@hotmail.com.

  • Raze Arein

    I’ve been working for two hours trying to figure this out with an HPes. Rolling back the driver worked like magic. Thank you so much.

  • First just press WINDOW KEY + P and see if you can Simpy add the 2nd display.

    • Kayra Gemalmaz

      God bless.

    • I didn’t know there was such a shortcut in Win 10! Thanks for the tip, it solved the problem in my case.

  • Elisa

    I had the same issue I have HP Pavilion Notebook – 17t-g100 CTO (Touch) and I had to go to the HP website and download an older driver for my display adapter (Intel Graphics 520), but this solve the problem, now I just need to fix the colors but is better than not having a dual monitor.

  • MJ343

    Alright so my 2nd monitor(previously a tv) was working just fine. I unplugged it for something, and then when I put it back in, it won’t detect it at all. Got the No Signal on it. The rollback method did not work at all. Any suggestions on if Driver Easy still does not fix my problem? The TV works but for some reason it’s not getting a signal anymore. If D.E. fixes it, then I’ll update this comment. But suggestions would be welcome!

    • jr92

      I’m having the same issue with my second computer monitor. After updating windows it no longer is working- very frustrating. Hopefully someone will have some suggestions!

  • Joy Kodani

    THANK YOU! THANK YOU! THANK YOU! I have been struggling my computer randomly ceasing to detect my second monitor for months. Until yesterday, simply deleting my driver software and rebooting did the trick. But after two days of multiple attempts and copious swearing, I finally found your fix in a desperate Google search. It worked like a charm. Color me happy!

    • April Cai

      Hi, Joy Kodani! Very glad we could help?

  • Barb

    Hello! Roll back is not showing up for me, https://www.screencast.com/t/9oIa6jKeXzX

    And when I go to update the driver, it’s telling me that it is updated. Any advice? https://www.screencast.com/t/BNAywrILqY

    • April Cai

      Hi, Barb. To get the previous version or the latest version of your driver, you can choose to download from your display adapter manufacturer’s website as we mentioned in the article. For some reasons, Microsoft might not detect the update for you, thus you need to update the driver manually.If you want to save time, you can take a try on Driver Easy.