Windows 10 cannot detect the second monitor

RECOMMENDED: Click here to fix Windows errors and optimize system performance

In addition to the many public services, a second monitor can be very useful for work. In some situations, however, Windows cannot detect the second monitor and a message such as –Windows 10 cannot detect the second monitor or Did not detect another monitor. There could be many reasons, but we could reduce the number to a few. If it’s with the software, we could probably trace it back to the drivers.

Windows 10 cannot detect the second monitor

January 2021 Update:

We now recommend using this tool for your error. Additionally, this tool fixes common computer errors, protects you against file loss, malware, hardware failures and optimizes your PC for maximum performance. You can fix your PC problems quickly and prevent others from happening with this software:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


Before you begin, make sure that all current Windows updates are installed on your Windows 10, that your second monitor hardware is working and that you have properly configured both monitors.

1] Update driver software

Most of the time, Windows inability to find the second monitor has to do with the graphics card. The second screen cannot be recognized because the graphics card or graphics card does not have the latest drivers installed. You may need to update or reinstall your NVIDIA driver for display adapters and monitors. Update the device drivers and check.

If the driver update does not work, you can reinstall it:

  1. Go to Windows + X Key and select Device Manager.
  2. Find the person in the Device Manager window. If you see a yellow exclamation mark, right-click it and select Rollback to reset the driver.
  3. If this option is not available, right-click and select Uninstall. Reboot the system.
  4. Open Device Manager again and select Check Hardware Changes to install the driver.

2] Manual detection of monitor settings

If your operating system cannot detect the other monitor, right-click Start, select Run and type desk.cpl in the Run field and press Enter to open the display settings. Normally, the second monitor should be detected automatically, but if it is not, you can try to detect it manually.

  1. Click the Start button and then click the aisle as an icon to open the application Settings.
  2. Go to System and click Detect in the Display tab under the Multiple Displays column. This button helps the operating system recognize other monitors or displays, especially older models. You can also connect to a wireless display here

3] Hardware Troubleshooting

  1. Try changing the HDMI cable to connect the second monitor. If it works, we know the previous cable was defective.
  2. Try using the second monitor with another system. It would be useful to isolate if it is a problem with the monitor or primary system.
  3. Troubleshoot hardware and peripherals and check.

Let us know if you have any other ideas.

RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance

Related Video