Key Takeaways:

  • If you notice black bars on either side of your computer monitor during use, it could be an easy fix.
  • Generally speaking, these bars are a result of an incorrect aspect ratio setting.
  • Adjust the monitor’s settings by following the instruction manual and adjust the PC’s settings by heading to the Control Panel.

One of the most frustrating aspects of using a top-quality computer monitor and a PC to run Windows 10 and related operating systems, is the appearance of mysterious black bars on the sides of the display.

Black Bars on Side of Monitor Causes

Generally speaking, the main cause of these black bars has something to do with how the monitor’s aspect ratio setting is interacting with the computer’s aspect ratio setting. There can occasionally be other causes of the dreaded black bars, but that is the number one factor to take a look at.

How to Fix Black Bars in Side of Monitor

Fixing these black bars will require a bit of troubleshooting and some adjustments of settings. Here are some general guidelines and tips so you can back to using your display without frustration.

Aspect Ratio

These black bars appear on the side of your monitor due to an incorrect setting regarding the aspect ratio. As an example, an ultrawide monitor with an aspect ratio of 16:9 will provide an incorrect visual representation while accepting a signal with an aspect ratio of 4:3. The end result? Black bars on either side of your monitor. Adjusting this aspect ratio can instantly fix the issue of errant black bars along the side of a display. You may want to keep a record of what the settings were before making adjustments, however, just in case you worsen the picture.

Warning: You may want to keep a record of what the settings were before making adjustments, however, just in case you worsen the picture

Adjust the Settings

Once you realize that incorrect enmeshment of the aspect ratio settings is the cause of the black bars, the fix can be a simple matter of adjusting the settings. This process will vary from monitor to monitor, so we recommend looking through the instructions and finding a page on changing the picture size. As for your PC, navigate to the control panel, click on “Appearance and Personalization”, then click on “Advanced Settings.” Go to the “Graphics Control” panel and click on “Scaling” and finally “Customize Aspect Ratio.”

Tip: we recommend looking through the instructions and finding a page on changing the picture size

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Troubleshoot Other Issues

There is a chance the issue is not the cause of an incorrect aspect ratio. If that is the case, you will have to complete other troubleshooting steps. We recommend doing a thorough Google search and looking through any and all system and display settings for anything you can change to fix the problem.

Warning: There is a chance the issue is not the cause of an incorrect aspect ratio

Tip: We recommend doing a thorough Google search and looking through any and all system and display settings for anything you can change to fix the problem

STAT:

Use a 100% cotton cloth or micro-fiber cloth for cleaning a computer monitor or HDTV. (Source)

Sources:

https://answers.microsoft.com/en-us/windows/forum/windows_10-other_settings-winpc/how-do-i-change-aspect-ratio-windows-10/2b61c273-c0d0-461c-ad6c-1be9edaaafec

https://en.wikipedia.org/wiki/Windows_10

https://www.wikiwand.com/en/Windows_10_version_history

https://en.wikipedia.org/wiki/Aspect_ratio_(image)

*https://www.youtube.com/watch?v=B_sfVH5qLGU

How to Fix Black Bars on Side of Monitor Guide FAQ

What is all the flickering when I try to record a television set picture with a video camera?

The flicking can be due to an incompatible resolution between the television set and the video camera.

What causes the monitor to not display full screen on Windows 10?

This could be caused by several issues, but it usually will resolve itself by downloading and installing new video adapter drivers.

How to run Windows Updates on Microsoft Windows 10?

You can search for updates and install them by going to the settings panel and then “Updates and Security.”

Lawrence Bonk

Lawrence Bonk is a copywriter with a decade of experience in the tech space, with columns appearing in Engadget, Huffington Post and CBS, among others. He has a cat named Cinnamon.

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