5 Easy Ways to Fix Brightness not Working in Windows 11

Windows 11 brightness not working? Apply these fixes to resolve the error

by Kazim Ali Alvi
Kazim Ali Alvi
Kazim Ali Alvi
Kazim has always been fond of technology, be it scrolling through the settings on his iPhone, Android device, or Windows. And at times, unscrewing the device to take... read more
Reviewed by Vlad Turiceanu
Vlad Turiceanu
Vlad Turiceanu
Passionate about technology, Windows, and everything that has a power button, he spent most of his time developing new skills and learning more about the tech world. Coming... read more
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  • If the brightness slider is not working on your Windows 11 PC, you are not alone, as several users have reported.
  • You can try reinstalling the monitor driver, updating the graphics driver, and running the SFC scan.
  • There are a bunch of solutions that are listed in this guide that will help you resolve the problem.

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The display brightness remains a critical aspect of your PC, and any issues here will not just hamper your experience but severely affect your eyesight. Several users have reported that the brightness slider is not working in Windows 11.

When the brightness slider is either missing, though that’s rarely the case, unresponsive, or not working, you would be unable to change the brightness level on your computer.

In the following guide, we will discuss the various issues that prevent you from changing the brightness and the most effective fixes for Windows 11.

Why is the brightness slider not working in Windows 11?

Issues with the brightness slider arise due to problematic drivers or corrupt or missing critical DLL files. The ieframe.dll file is primarily responsible for the brightness, and you should look for problems with it.

Also, misconfigured settings, or issues with the current Windows 11, could likely cause problems while adjusting the brightness.

Identifying the problem, in this case, can be tricky, and we recommend executing the fixes below in the same sequence as they are listed for quick and effective troubleshooting.

How can I fix the brightness slider if it’s not working in Windows 11?

1. Reinstall the monitor driver

  1. Right-click on the Start icon and select Device Manager.Quick Access menu
  2. Expand the Monitors section.Monitors
  3. Right-click on the Monitor and select Uninstall device from the context menu.Uninstall device to fix brightness not working windows 11
  4. Again, click Uninstall in the confirmation prompt that pops up.Confirm Uninstall

2. Update the graphics driver

  1. Open the Start menu and open Device Manager.device manager
  2. Double-click on the Display adapters entry.Display adapters
  3. Right-click on the graphics adapter and select Update driver from the context menu.Update graphics driver
  4. Select Search automatically for drivers.Search automatically for drivers
  5. Windows will now find the best available driver on the system and install it for the graphics adapter.

If you have an outdated graphics driver installed, the possibility of the brightness slider not working in Windows 11 is high. Therefore you should update the driver.

In case Windows cannot find an update using the Device Manager method, you can check for the latest driver version in Windows Updates or manually download the setup from the official manufacturer’s website and install it.

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  6. Restart your PC for the changes to take effect.


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3. Perform SFC and CheckDisk scan

  1. Open the Search menu, type Command Prompt and select Run as administrator.
  2. Type the following command and hit Enter:chkdskRun ChecDisk to fix brightness not working windows 11
  3. Execute the following command:promptRun prompt command to fix brightness not working windows 11
  4. Now, paste the following two commands and then hit Enter after each to scan and fix issues with the ieframe.dll file:
    • sfc /scanfile=c:\windows\system32\ieframe.dll
    • sfc /verifyfile=c:\windows\system32\ieframe.dllRun SFC for ieframe.dll to fix brightness not working windows 11
  5. Run the following command:assocRun assoc to fix brightness not working windows 11
  6. Paste the following command and hit Enter:sfc /scannowRun SFC scan to fix brightness not working windows 11

The above scans will identify problems with the ieframe.dll file and the other corrupt system files and replace them with their cached copy. After running the scans, check if the brightness slider is now working in Windows 11.

4. Update Windows 11

  1. Press Windows + I to launch the Settings app.
  2. Select Windows Update from the left side.Windows Update
  3. Click on Check for updates.Check for updates to fix brightness not working windows 11
  4. Click on the Download & install option in case any are found.Download & install

5. Perform a system restore

  1. Open the Start menu.
  2. Type Create a restore point and open it.Create restore point
  3. Click on the System Restore button.System restore to fix brightness not working windows 11
  4. Select the Choose a different restore point option and click on Next.Choose a different restore point
  5. Select a restore point from the list and click on Next to proceed.select Restore point to fix brightness not working windows 11
  6. Verify the restore point details, and click on Finish to start the process.Finish

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If none of the methods listed above have the brightness slider working in Windows 11, performing a system restore would help.

The concept of System Restore is to take the system back to a state where the error didn’t exist. But you will have to choose a restore point created before you first encountered the error.

Although Windows automatically creates them whenever undergoing any significant change, you must learn how to create a restore point in Windows 11 manually.

How do I stop Windows 11 from lowering brightness?

  1. Press the Win + I buttons to open the Settings menu.
  2. Select System from the left side.
  3. Click on Display.display-select auto hdr not working windows 11
  4. Choose Brightness.
  5. Uncheck the Help improve battery by optimizing the content shown and brightness option.

Some Windows 11 PCs can automatically adjust the brightness levels of the screen based on the content being displayed.

Following the above steps, you can quickly turn this feature off and continue with your set brightness levels.

How can I fix other display issues in Windows 11?

Apart from being unable to change the brightness level, several users have reported that the screen dims automatically in Windows 11. Thankfully, we have a dedicated guide to help you resolve the problem. The issue arises when certain features responsible for automatically adjusting the screen brightness malfunction.

Another problem some users seem to face is the flickering screen problem, which you can resolve by following this guide for the best solutions. If you are facing the black screen issue in Windows 11, we suggest you follow our guide for the most effective methods to resolve it.

That’s all there is to the brightness slider not working problem in Windows 11. By reaching this part of the article, the error should be eliminated, and you would also know how to troubleshoot other issues with the display.

Now that the brightness settings are accessible and working learn how to change them in Windows 11. Then, tell us which fix worked for you in the comments below.

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