If you are using any of the following Microsoft Windows version 7, 8, 8.1 or 10, this problem will occur which causes your PC. There are many reasons behind for brightness not working, one of them is graphics problems. Why is my laptop screen brightness not working? 2.Expand Display adapters and then right-click on the integrated graphics card and select Update Driver. 1.Press Windows Key + R then type devmgmt.msc and hit Enter to open Device Manager. Can't adjust screen brightness in Windows 10?Ĭan’t Adjust Screen Brightness in Windows 10 Make sure to create a restore point just in case something goes wrong. A device driver basically acts like a middleman between the software/operating. If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. So, you need to update the display driver to check if it solves the problem. To find the brightness slider in earlier versions of Windows 10, select Settings > System > Display, and then move the Change brightness slider to adjust the brightness.
The Brightness slider appears in action center in Windows 10, version 1903. There, adjust the Change brightness slider's position to set the desired screen brightness level.› Why won't my brightness adjust windows 10įrequently Asked Questions How to change the brightness level in Windows 10?Ĭhange Screen Brightness in Windows 10 in Settings.› Brightness setting windows 10 not working.› Change windows 10 display brightness issues.› Unable to change brightness in windows 10.