To turn off adaptive brightness on Windows 10, press the Windows key + I keyboard shortcut to open the Settings app, then click on the System category. If your computer monitor has an integrated light sensor, Windows can adjust the screen brightness depending on the amount of light around you. In this tutorial we’ll show you how to prevent Windows 10 from changing screen brightness automatically. Your Windows 10 laptop keeps adjusting the brightness constantly? The screen becomes dim when the AC adapter unplugged? How do I disable auto-brightness/auto-dimming? On most modern computers, Windows can automatically adjust the screen brightness based on the light of surroundings, your power plan or battery life.
