How to fix Windows 10 brightness control not working issue

• Go to Start Menu > Search and type Device Manager.

  

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Then launch the Device Manager app and go to the Display adapters section and just expand
• Then select Update Driver Software option

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Select Search automatically for updated driver software and wait.Windows 10 should automatically download necessary display driver via internet connection.

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• Now click on brightness button

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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