Then wait for the process to be finished.
In order to fix the error of Windows 10 no brightness slider, you can choose to install a generic PnP monitor driver. Once all steps are finished, reboot your computer and check whether the issue of Windows 10 brightness slider missing is fixed.
In order to fix the issue of Windows 10 brightness slider missing, you can choose to return brightness to quick actions. Return Brightness Setting to Quick Actions
How to SolveWindows 10 Brightness Slider Missing? So, do you know how to solve the error of Windows 10 brightness slider missing? In the following section, we will show you the solutions.