Windows 11 Brightness Not Working: We Have Fixed it for You

Computers can be used in various environments, which may present different light intensities. Some may cause your computer display brightness to become too bright and others too dim. So it becomes frustrating when your Windows 11 brightness is not working.

This article targets fixing the problems of computer display brightness. Whether you are using a Dell or HP laptop or desktop, we will show you how to fix it when your brightness control not working on your Windows 11 PC.

How do I fix Windows 11 brightness if it is not working?

1. Update outdated drivers

1. Firstly, press the Windows + I keys together to open Settings or open by clicking the Windows icon on the Taskbar.
   
2. Then click the Windows Update option and the Check for updates button to find new updates.
   
3. Now click on Advanced Options. 
   
4. Then click on the Optional updates section.
   
5. Finally, select the Driver Updates section and Download and Install all the available updates.
   
6. The driver will start to download. Allow the process to complete.
   
7. Finally, restart your PC.
   

2. Reinstall monitor drivers

1. Press the Windows + X keys together to open the Quick Link menu and either select Device Manager in the menu or press M.
   
2. When the Device Manager opens, please scroll down to find Monitors and expand it.
   
3. Then, right-click on your monitor driver and click Update driver from the menu options.
   
4. Afterward, follow subsequent instructions and install updates.
   
5. Finally, restart your PC.

3. Update graphic drivers automatically via third-party app

1. Firstly, go to Driver Easy website on your browser (the third-party app we’ll use for this scenario).
2. Then download and install the program.
   
3. Then run the Driver Easy app and click the Scan Now button to scan your PC and detect faulty drivers. 
   
4. Finally, click on the Update All button to run the update accordingly.
   
5. Let the process complete, and then restart your device.

4. Update graphics driver via Device Manager

1. Firstly, simultaneously press the Windows and X keys to open the Quick Link menu.
   
2. Secondly, click Device Manager or press M to launch the tool.
   
3. Now click the arrow on the left of Display drivers and right-click on it.
   
4. Then select Update driver.
   
5. Finally, restart your PC.

5. Update Operating System

1. Firstly, press the Windows + I keys together to open Settings or open by clicking the Windows icon on the Taskbar.
   
2. Then click the Windows Update option and the Check for updates button to find new updates.
   
3. Now Windows will search for new Windows updates. Follow the on-screen instructions to install the update.
4. Finally, restart your computer.

6. Scan for virus

1. In the search box, search for Windows Security.
2. Click on the relevant search result to open the application.
   
3. Now click Virus & threat protection.
   
4. Next, click on the Scan options to view all available scans.
   
5. Choose the Full scan option and click the Scan now button to do a deep scan on your PC for viruses or malware.
   

7. Perform System File Checker Scan

1. Start by clicking the Search icon on the taskbar and enter command prompt in the text entry.
2. Now, right-click on Command prompt and select Run as administrator.
   
3. To continue, click on Yes on the next prompt.
   
4. Now, you will enter the command below and press the Enter key:
   DISM.exe /Online /Cleanup-image /Restorehealth
   
5. When the process is complete, you should enter the following command and press the Enter key to run an SFC scan:
   sfc /scannow
   
6. Finally, it would be best to restart your computer to implement repairs.

8. Perform system restore

1. Firstly, press the Windows + R key combination to open the Run dialog on your PC and type rstrui. Press Enter after to open it.
   
2. Click on Choose a different restore point when the System Restore wizard opens.
   
3. Then click on the Next button to continue. 
   
4. On the next window, choose your restore point and click Next. 
   
5. Allow the process to run and complete.
6. Finally, click Finish when the restore is complete.

9. Turn off automatic brightness adjust

1. Click the Windows icon on the taskbar, select the Settings icon, or press the Win + I hotkeys together to launch the Settings window.
   
2. When it opens, choose System from the left pane.
   
3. Then click on Display.
   
4. Then uncheck the Help improve battery by optimizing the content shown and brightness checkbox.
   

10. Change the brightness from Settings

1. Click the Windows icon on the taskbar, select the Settings icon, or press the Win + I hotkeys together to launch the Settings window.
   
2. When it opens, choose System from the left pane.
   
3. Then click on Display.
   
4. Under Brightness & color, use the slider for Brightness to adjust to the desired screen brightness.
   

11. Disable auto brightness

1. Click the Windows icon on the Taskbar, select the Settings icon, or press the Win + I hotkeys together to launch the Settings window.
   
2. When it opens, choose System from the left pane.
   
3. Then click on Display.
   
4. Under Brightness & color, expand the Brightness option, then uncheck the Change brightness automatically when lighting changes checkbox.
   

Why is my Windows 11 brightness not working?

There are several reasons why your Windows 11 brightness may not be working. These reasons may include one or more of the following:

• Display driver issues: It is possible that your display driver is out of date or corrupt. When this is the case, you may observe the brightness issue.
• Power plan issues: Occasionally, incorrect settings can cause brightness issues.
• Hardware issues: If you have recently installed new hardware, the hardware may be interfering with the brightness settings.
• System errors: It is possible that a system error is preventing the brightness settings from working properly. Once you resolve it, you may be in control of your brightness control again.
• Firmware issues: If you have recently updated the firmware on your device, the firmware update may be causing the brightness issue.
• Incorrect brightness settings: Also, it is possible that your screen’s brightness setting is too low or too high, which can cause the brightness not to work.
• Faulty display: If the display is defective or has any issue, the brightness may not work correctly.

These causes require you to be mindful of your computer usage. Ensure you care for your computer at all times. This, however, does not mean that problems may not come up. They are most bound to do so rudely so without your permission.

In the final analysis, this article focuses on how to gain back your control of the Windows 11 PC whose brightness control is not working. The solutions have been simplified to serve the knowledge of even a lay man handling a computer for the first time.