How to Stop Windows 8.1 from Adjusting the Screen Brightness

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 the screen brightness. Unfortunately, devices like the Dell XPS 13 laptop and Windows convertibles can be very aggressive about dimming the backlight on a display. Sometimes Windows device manufacturers even add their own software that adjusts screen brightness, allowing Windows users to manually adjust their brightness over and over again.

Here’s how to stop Windows 8.1 from adjusting your screen brightness without your permission.

Before we begin, it is 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 don’t look familiar to you, go to the Windows Store and look for a title that says Update to Windows. 8.1. You will want to install this update before using this tutorial. Typically, the upgrade takes about an hour.

Go to by pressing the Windows key on your keyboard or the Windows button at the bottom of your device’s screen.

Move your mouse cursor to the upper-right corner of your screen to open the Charms Bar. Touch users should place their fingers on the right edge of the screen and slide their fingers slightly to the left. Tap or click .

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tap or click.

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tap or click

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tap or click. The third one from the bottom is the menu option on the left.

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Now click or tap the switch below

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You have successfully prevented Windows 8.1 from adjusting your screen brightness.

It is important to remember that turning this key has consequences. Windows adjusts the screen brightness so it can save battery power. Without this capability, you may find that a few of your devices don’t have as much battery life as they used to. It’s also important to remember to adjust the screen brightness yourself in different lighting conditions. Failure to do so can cause eyestrain and headaches. To adjust the screen brightness on your own, return to the Settings menu and click on the light bulb icon or on it.

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