Brightness not changing windows 10

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Turn off/disable adaptive brightness using the Registry.Disable/turn off corresponding options in GPU settings.If Windows 10 Adaptive Brightness is not on your Windows 10 PC, you can follow these troubleshooting suggestions: Windows 10 Adaptive Brightness not working However, after updating or installing Windows 10, if the adaptive brightness has stopped working, try out our suggestions. Adaptive Brightness helps you get the brightness automatically based on the light around your computer. If Adaptive Brightness is not working or turning off on your Windows 10, I am sure that something in this post will help you fix the issue.