Brightness Not Working on Windows 11? How to Fix It

Recently, lots of Windows 11 users reported that they are facing an issue that the brightness is not working on Windows 11. If you are one of them, don’t worry. This article is going to help these users to fix brightness not working on Windows 11.

Brightness Not Working on Windows 11

Why brightness slider isn’t working on Windows 11?

If you want to solve brightness not working on Windows 11, you should know why the brightness slider doesn’t work at first. usually, the reason causing brightness slider not working is the problem in driver or damaged key DLL file. Since the ieframe.dll file is responsible for brightness, you should find the solutions from the ieframe.dll file.

What if the brightness slider doesn’t work in Windows 11?

Just as we mentioned above, to solve brightness slider not working in Windows 11, you are recommended to follow the solutions below one by one.

1. Reinstall the monitor driver

Right-click the Start icon in the taskbar or press Windows+X keys to launch the quick access menu, then select Device Manager from the list of options that appears.

brightness not working - launch device manger

Double-click the monitor entry to expand and view the devices under it.

brightness not working - monitor entry

Right-click on the monitor and choose Uninstall Device.

brightness not working - uninstall

Click Uninstall in the confirmation prompt window.

brightness not working-confirm

2. Update the graphics card driver

Launch the search menu by pressing Windows+S keys, search for Device Manager in the text field, and click on the relevant search result.

brightness not working - search menu

Next, double-click the Display Adapter entry.

brightness not working - display adapter

Right-click on the graphics adapter and select Update Driver from the context menu.

brightness not working - update driver

Now select Search for drivers automatically from the two options presented in the Update Drivers window.

brightness not working - search drivers automatically

Windows will now find the best available driver on the system and install it on the graphics adapter.

Outdated graphics driver might be the reason causing brightness slider not working in Windows 11. Therefore, it is better to update the driver.

3. Perform SFC and CheckDisk scans

Launch the search menu by pressing Windows+S keys, search for Windows Terminal, then right-click on the relevant search result, and choose Run as administrator.

brightness not working - Windows Terminal

Hit on Yes button on the User Account Control window.

brightness not working - brightness not working - UAC

Click the down arrow at the top and select Command Prompt from the menu. Alternatively, you can launch Command Prompt directly by pressing Ctrl+Shift+2 in a new tab.

brightness not working - Command Prompt

Then, type the command: chkdsk and hit Enter to run the CheckDisk scan

brightness not working

Type and execute the command: prompt

brightness not working - prompt

Now, paste the following two commands and hit Enter each to scan and fix problems with the ieframe.dll file:

sfc /scanfile=c:\windows\system32\ieframe.dll

sfc /verifyfile=c:\windows\system32\ieframe .dll

brightness not working - command

Next, execute the command: assoc

brightness not working - execute the command

Type the command sfc /scannow and hit Enter to run the SFC scan.

brightness not working - sfc /

The above scan will identify problems with the ieframe.dll file, as well as other corrupted system files, and replace them with cached copies of them. After running the scan, check that the brightness slider is now working in Windows 11.

4. Update Windows 11

Press Windows+I to launch the Settings app, then select Windows Update from the list of tabs in the left navigation pane.

brightness not working - settings

Next, click Check for Updates to scan for any newer versions of the operating system available.

brightness not working - windows update

If you find anything, click on the Download and Install option.

brightness not working - check update

5. Perform a System Restore

Press Windows+S to launch the search menu, enter Create restore point in the text field at the top, and click on the relevant search result.

brightness not working - create restore point

Click the System Restore button.

brightness not working - restore system

Next, select the Choose a different restore point option and click Next.

brightness not working - restore

Select a restore point and click Next button.

brightness not working - restore point

Finally, verify the restore point details and click Finish to start the process.

brightness not working - confirm restore point

If none of the methods listed above made the brightness slider work in Windows 11, performing a system restore can help.

The concept of system restore is to restore the system to the state it was in when the error did not exist. But for this, you must choose a restore point that was created before the error was first encountered.

Although Windows automatically creates them when any major changes occur, you must know how to manually create restore points in Windows 11.

How to fix other display issues in Windows 11?

In addition to the inability to change the brightness level, some users have reported other issues, such as automatic screen dimming in Windows 11, screen flickering, and even a black screen in Windows 11.

Many users have encountered the above problems, but there is no need to worry, there are corresponding solutions for the screen to dim and the black screen to flicker.


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