When the battery falls below 20%, Windows will automatically lower the screen brightness, which helps reduce battery consumption. Windows 10 includes a new feature called Battery Saver that can extend battery life of your laptop or tablet. Part 2: Disable Auto Screen Dimming While in Battery Saver If the above option is missing or you’re using an old version of Windows, open the Power Options window from the Control Panel and expand the Display item, you can turn off the “ Enable adaptive brightness” setting.Īdaptive brightness is available in Windows 10, 8 and 7, but it is only visible if your computer has an ambient light sensor. On the right, uncheck the “ Change brightness automatically when lighting changes” option. 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.

Screen darker after windows 10 update