How To Change Main Display Windows 10

While Windows 10 supports the use of multiple displays, not many people know how to change main display Windows 10. Your computer setup contains more than one display and you have a hard time changing the main display? In that case, you should find this article helpful. Down below is a guide on changing the main display of Windows 10 PC.

Changing Main Display On Windows 10: Instructions 

Once it comes to how to change main display Windows 10, a total of three methods exist:

Via Settings

  • Step 1: Press Windows + I to open Settings.
  • Step 2: Select System, go to Multiple displays in Display, choose the monitor you want to set as primary and check the Make this my main display checkbox. If you can’t see your monitors, Hit Detect.
  • Step 3: See how things turn out. 

Via NVIDIA Control Panel

  • Step 1: Press Windows key, type NVIDIA Control Panel and hit Enter.
  • Step 2: On the left panel under Display, hit Setup Multiple displays.
  • Step 3: Right-click the display you want to set as primary then pick Make Primary.
  • Step 4: Select Apply and choose Yes to save changes.

Via Radeon Settings

  • Step 1: Right-click an empty space on the desktop then pick AMD Radeon Settings.
  • Step 2: Select Eyefinity, choose Quick setup and hit Arrange. 
  • Step 3: Arrange the displays to your liking. 

Insights Into Main Display Grayed Out

  • Step 1:  Press Windows key, type devmgmt.msc and hit Enter to open Device Manager. 
  • Step 2: Expand Display adapters, right-click your graphics card and pick Update driver. 
  • Step 3: Follow on-screen instructions.
  • Step 4: Restart your computer after the update finishes.
  • Step 5: When the screen comes back on, change the display one more time and see how things turn out.


  • Step 1: Launch your web browser, visit the official website of the manufacturer of your graphics card and download the latest driver for it.
  • Step 2: Right-click the downloaded driver setup then pick Run as administrator.
  • Step 3: Follow on-screen instructions then restart your computer. 
  • Step 4: Change the display again and witness the result.

Screen Turning Black Before Logging In: Fixes

Disconnect And Reconnect

To ensure that connection is not the root of the problem, shut down your computer then unplug all peripherals including the display. Next, replug the display, turn on your computer and determine whether the issue persists. 

Startup Repair

  • Step 1: Shut down your computer by long-pressing the power button.
  • Step 2: Turn on your computer and as Windows begins to load, long-press the power button to shut it down again.
  • Step 3: Repeat the process until you get to Windows Recovery Environment (WinRE). Proceed to select Troubleshoot in Choose an option screen, choose Advanced Options and hit Startup Repair. 

Boot To Safe Mode

  • Step 1: Enter WinRE.
  • Step 2: In Choose an options screen, go to Troubleshoot > Advanced options > Startup Settings > Restart.
  • Step 3: Feel free to press either 4 (F4) to boot into Safe Mode or 5 (F5) to boot into Safe Mode with Networking.

The black screen after you boot into Safe Mode? In that case, interference from third-party software is at fault. For good measure, you should uninstall recently installed applications, roll back recently updated drivers and so on. 

Screen Projection Options On Windows 10: Summary 

On Windows 10, you can project your screen in four ways:

  • PC screen only: With this mode, only the PC screen is used even if you have multiple screens connected.
  • Duplicate: With this mode, you get to duplicate the output from your primary display to available screens.
  • Extend: With this mode, you could extend the screen to other connected displays. It’s possible to move your cursor past the edge of your PC screen to the second display.
  • Second screen only: With this mode, only your secondary display is used.


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