Devices running Windows use an army of different sensors to make life easier for users. In Windows 8, Microsoft added the ability for Windows devices to detect how much light is in a room and adjust their screen brightness. Unfortunately, devices like the Dell XPS 13 notebook and Windows convertibles can be way too aggressive in turning down the backlight on a display. Sometimes Windows device makers even include their own software that adjusts screen brightness, leaving Windows users to adjust their brightness manually over and over again.
Here’s how to stop Windows 8.1 from adjusting your screen brightness without your permission.
Before we begin, it’s important to note that this tutorial is specifically for users running Windows 8.1, the free update to Windows 8. If things in the screenshots look unfamiliar to you go to the Windows Store and look for a banner that says Update to Windows 8.1. You’ll want to install that update before using this tutorial. Typically, the upgrade takes around an hour.
Go to the Start Screen by pressing the Windows key on your keyboard or the Windows button underneath your device’s display.
Place your mouse cursor in the top-right corner of your display to open the Charms Bar. Touch users should place their finger on the right edge of their display and slide their finger to the left slightly. Tap or Click on Settings.
Tap or click on Change PC Settings.
Tap or click on PC and Devices.
Tap or click on Power and Sleep. It’s the menu option on the left side that’s third from the bottom.
Now click or tap on the switch below Adjust My Screen Brightness Automatically.
You’ve successfully kept Windows 8.1 from adjusting your screen brightness.
It’s important to remember that flipping this switch has consequences. Windows adjusts the screen brightness so that it can save battery power. Without that ability you may find that a few of your devices simply don’t get as much battery life as they used to. It’s also important to remember to adjust the screen brightness yourself in different lighting conditions. Not doing so could lead to eyestrain and headaches. To adjust the screen brightness on your own, go back to the Settings menu and click or on the light bulb icon.