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.
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.
Double-click the monitor entry to expand and view the devices under it.
Right-click on the monitor and choose Uninstall Device.
Click Uninstall in the confirmation prompt window.
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.
Next, double-click the Display Adapter entry.
Right-click on the graphics adapter and select Update Driver from the context menu.
Now select Search for drivers automatically from the two options presented in the Update Drivers window.
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Outdated graphics driver might be the reason causing brightness slider not working in Windows 11.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.
Hit on Yes button on the User Account Control window.
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.
Then, type the command: chkdsk and hit Enter to run the CheckDisk scan
Type and execute the command: prompt
Now, paste the following two commands and hit Enter each to scan and fix problems with the ieframe.dll file:
sfc /verifyfile=c:\windows\system32\ieframe .dll
Next, execute the command: assoc
Type the command sfc /scannow and hit Enter to run the SFC scan.
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.
Next, click Check for Updates to scan for any newer versions of the operating system available.
If you find anything, click on the Download and Install option.
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.
Click the System Restore button.
Next, select the Choose a different restore point option and click Next.
Select a restore point and click Next button.
Finally, verify the restore point details and click Finish to start the process.
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.