Sometimes, the display adapter on your computer can break down so as to lead to the issue brightness not working Windows 10. When the process is finished, try to check whether the issue Windows 10 brightness not working is solved. Step 3: Go to Windows Update section, and click Check for Update to continue. Step 2: In the pop-up window, choose Update & Security. Step 1: Press Windows key and I key together to open Settings.
To upgrade Windows 10, we will show you the detailed steps. If the brightness slider is not working result from the operating system, especially after a major feature upgrade, upgrading Windows 10 is a good way to solve the problem. Update Windows 10Īs for solving the Windows 10 brightness not working problem, you can update Windows 10 firstly. Now, we will show you how to fix the Windows 10 brightness not working problem. Tip: To avoid data loss during the fixing process, try MiniTool software to keep data safe.