Windows 11 comes with advanced features on your PC, you can change the brightness of the screen manually, or you can let the system adjust the settings automatically, which also improves video playback visibility and battery life.

The system provides two features to control brightness. If the device has an ambient light sensor, Windows 11 can regulate the brightness intensity based on the lighting in the room. Also, on specific screens, you can enable content adaptive brightness, a feature that improves battery life by adjusting the brightness and contrast levels based on the content you are watching.

This guide will walk you through the steps to allow Windows 11 to adjust the brightness automatically to improve video playback visibility and battery life.