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How To Switch Monitors 1 and 2

Two Monitors

Some tasks require us to use more than one monitor display at a time. For instance, web development, web designing, video editing, and many other tasks such as these often require more than one monitor.

In such a situation, we often need to switch from one monitor screen to the other while operating on the same keyboard.

Quick Answer

To switch between monitors 1 and 2, right-click on your desktop and select “Display”. A monitor display box numbered 1 and 2 will appear on your screen. From the display box, select the monitor you want to switch to.

The remainder of this article will explore other ways to switch between monitors. You will also learn different ways to change display settings, such as resolution, display style, and screen orientation.  

How To Switch Between the Primary and Secondary Monitors

Below are the step-by-step processes to switch monitors 1 and 2.

  1. Go to your desktop screen, right-click, and choose “Display”. It will bring out two blue boxes numbered 1 and 2.
    • The number 1 box denotes the left monitor.
    • The number 2 box represents the right monitor.
  2. Choose the box you want to set as your primary monitor. You can set it as your primary monitor when you click “Make This My Main Display” in the checkbox.
  3. Click “APPLY” to effect your changes.

How To Switch Monitors on Windows 10

To switch the monitor numbers on Windows 10, follow these steps.

  1. Unplug all monitor cables from their ports except the primary monitor.
  2. Type “regedit” on the Windows search bar and click “Registry Editor” to change the registry keys.
  3. Navigate to or copy and paste HKEY_LOCAL_MACHINESystemcurrentControlSetControlGraphicsdrivers and click Enter.
  4. On the left panel, click the “Configuration” folder and rename the “Connectivity” key to “connectivity.old”.
  5. Switch off your computer and connect your intended monitor 1 to the primary video port on the PC.
  6. Switch on your computer.
  7. Right-click on your desktop and select “Display Settings”.
  8. Plug the monitor you intend to use as the secondary monitor. Your computer will install the drivers for the secondary monitor.
  9. Go to “Multiple displays” and see your monitor labels. Monitor 1 represents the monitor plugged into the primary port, and monitor 2 means the monitor plugged into the other port.

If the secondary monitor doesn’t show up, go to “Multiple displays” and click “Detect”.

How To Change the Primary Display on a Multi-Monitor Mac Setup

Here are the steps to set up the primary display on a Multi-monitor Mac setup:

  1. Navigate to the Apple menu and click System Preferences > “Display” > “Arrangement”.
  2. Click on the white bar at the top of the current primary monitor and drag it to the monitor you want to use as your primary display.
  3. Once you have set your new primary display, close System Preferences.
Keep in Mind

Using this method, you can turn any external display into a primary display. Changing the primary display allows you to have a larger viewing angle if the external monitor is larger.

How To Adjust Monitor Display Styles

Here is how to change display style in a multi-monitor setup.

  1. Right-click on your desktop and select “Display”.
  2. Choose your desired display monitor.
  3. Click “Multiple displays”.
  4. Choose “Duplicate these displays”. It will enable the secondary monitor to show images shown in the monitor 1 display. Alternatively, you can select “Extend these displays” to expand each monitor display.
  5. Choose your preferred monitor.
  6. Click “Apply” to effect the changes.
More Info

Apart from “Duplicate these displays” and “Extend these displays”, other display options are available.

“PC screen only”: Only shows the display on the PC screen.
“Second screen only”: Only shows the display on the second screen.

How To Set the Monitor Resolution

Here is how to change resolution in a multi-monitor setup.

  1. Right-click your desktop and click on “Display”.
  2. Choose the monitor you desire to use and adjust.
  3. Click on “Advanced Display Settings” at the bottom of the dialogue box.
  4. Click on “Resolution”.
  5. Choose your preferred resolution.
  6. Click “Apply” when done.

How To Rearrange Your Monitor Displays

You may decide to rearrange your monitor displays if you want them to match the setup in your home or office.

Here is how to arrange your monitor display.

  1. Go to “Display Settings” and drag the display to the position you want.
  2. Click “Apply” when done.

How To Change Monitor Orientations

Windows often use the screen orientation it thinks is best for you. However, you can set a personalized screen orientation.

Here is how to set a screen orientation for yourself.

  1. Go to “Display Settings” and navigate to “Scale & Layout”.
  2. Select your preferred display orientation.
Keep in Mind

If you have a rectangular monitor (e.g., 4:3 or 16:9) and set a portrait orientation, you’ll have to physically rotate the screen to a portrait position.


Switching between monitors and changing display settings is easy in a multi-monitor setup. The steps given in this article will help you switch between monitors and adjust other display settings.

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