Solution 4: Use Power Options to Solve Display Brightness Not Working

Click on Display, and move the slider to increase or decrease the brightness.

Click on the Windows search bar, type Settings, and press Enter.

If none of the above solutions work, you can also use System Settings to solve the Windows 10 brightness slider missing or not working errors. If there is some error related to the keys, your brightness will change from here. Click on the Notification Icon on the left side of the taskbar, Expand, and move the slider to change the brightness. Try to use the Action Center to change the brightness of your PC. Under such circumstances, you will face screen brightness slider not working problems on Windows 10, 8, 7. The brightness key on your laptop may not work due to one or more reasons like the key is broken, jam, etc.

Solution 2: Use the Action/Notification Center to Change the Brightness If this solution does not work, take the help of the next one. These errors can be fixed by restarting the system.

Sometimes, due to some minor error, you may face other related problems. When you face the screen brightness not working or any other problem on Windows 10 PC, the first thing you should do is restart the system. The Fn keys of laptops are a little tricky and you may be pressing them wrong. Solution 1: Start With the BasicsĪre you pressing the correct keys on your system to change the brightness? We know that this sounds ridiculous, but ignorance is bliss. All the methods and fixes listed below are tried and tested for your ease. If your Windows 10, 8, 7 PC brightness control slider is not working or posing other problems and you want quick fixes for it, the coming sections can help you. Successfully Fixed the Brightness Control Slider Not Working on Windows 10, 8, 7 How to Fix the Brightness Slider Not Working on Windows PC?

Computer brightness not working