In this post, we'll see four different ways to change brightness in Windows 10. Let's see what they are.
Press Windows + I, and it'll open "Settings."
Hit "System," and you'll be in the "Display" section now.
Now, under "Change brightness," you can see a slider which you need to use to adjust brightness.
Slide to the left to decrease brightness and slide to the right to increase brightness.
If you're using the desktop, then you may not see the slider, and you need to use the buttons in the monitor to change brightness.
If you're not using the desktop and still can't see the slider (or the slider is not working), then you need to update display driver.
Open Windows Mobility Center.
Under "Display brightness," you can see a slider.
Slide to the right to increase brightness and slide to the left to decrease brightness.
You need to press Function key + F5 for reducing brightness and Function key + F6 for increasing brightness.
Every time you use the above key combinations, your brightness got raised or reduced by 10%. Also, note that the key combinations may differ for your device.
Open Action Center. Hit "Expand."
You can see "Brightness" tile which you can find between "Airplane mode" and "Battery saver."
If your brightness is less than 25%, then a single click on this tile makes the brightness as 25%. The same is applies to 50%, 75%, and 100%.
Once the brightness is 0% (a click on the tile after 100% will set brightness as 0%), 25%, 50% or 75%, then your every click on this tile will increase the brightness by 25%.
Alternatively, you can right-click on the "Brightness" tile and then hit "Go to Settings." And, you'll see the slider I've talked about in "Method 1" which you can use to adjust brightness.
The above methods don't change brightness for both Plugged in and Battery.
It'll only change brightness for the current state (Plugged in or Battery).
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How to Change Brightness in Windows 10