To do this job, navigate to Control Panel > Hardware and Sound > Power Options. How to Adjust Brightness When the PC Is Plugged inīased on whether your PC is plugged in an outlet or not, you are able to set different levels for the display brightness, for instance, set a high brightness level when plugged in and a lower one when on battery power. You need to press the physical buttons on your monitor to change the brightness. If you are using a desktop computer connected to an external monitor, these methods may not work. Now, four methods to adjust screen brightness on Windows 10 laptop have been shared with you. Just drag it to increase or decrease the screen brightness of your laptop. Step 2: You can see the Screen brightness slider in the bottom of the Power Options interface. Step 1: Go to Control Panel > Hardware and Sound > Power Options. Option 4: How to Change Brightness on Windows 10 via Control Panel Tip: You can check the Change brightness automatically when lighting changes option to adjust brightness based on ambient light.

Cannot adjust brightness windows 10