Some PCs can let Windows automatically adjust screen brightness based on the current lighting conditions.
This automatic setting helps make sure your screen is readable wherever you go. Even if you use it, you can still move the Brightness slider to fine-tune the brightness level for a built-in display.
See also:
Change screen brightness in Windows - Microsoft Support
Get steps for how to change screen brightness in Windows.

This tutorial will show you how to turn on or off Adaptive Brightness for all users in Windows 11.
Turning on or off Adaptive Brightness is only applied to the current power plan scheme.
Display brightness is automatically reduced by 30% by default when using battery saver.
Contents
- Option One: Turn On or Off Adaptive Brightness in Settings
- Option Two: Turn On or Off Adaptive Brightness using BAT file
- Option Three: Turn On or Off Adaptive Brightness in Intel Graphics Control Panel
OPTION ONE
Turn On or Off Adaptive Brightness in Settings
1 Open Settings (Win+I).
2 Click/tap on System on the left side, and click/tap on Display on the right side. (see screenshot below)
3 Click/tap on Brightness on the right side to expand it open. (see screenshot below step 4)
4 Check (on - default) or uncheck (off) Change brightness automatically when lighting changes for what you want. (see screenshot below)
5 You can now close Settings if you like.
OPTION TWO
Turn On or Off Adaptive Brightness using BAT file
1 Do step 2 (on) or step 3 (off) below for what you want.
2 Turn On Adaptive Brightness
This is the default setting.
A) Click/tap on the Download button below to download the BAT file you want to use below, and go to step 4 below.
Turn_ON_Adaptive_brightness_on_AC.bat
(Content of BAT file for reference)
Code:
powercfg -setacvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 1
powercfg -SetActive SCHEME_CURRENT
AND/OR
Turn_ON_Adaptive_brightness_on_battery.bat
(Content of BAT file for reference)
Code:
powercfg -setdcvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 1
powercfg -SetActive SCHEME_CURRENT
3 Turn Off Adaptive Brightness
A) Click/tap on the Download button below to download the BAT file you want to use below, and go to step 4 below.
Turn_OFF_Adaptive_brightness_on_AC.bat
(Content of BAT file for reference)
Code:
powercfg -setacvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 0
powercfg -SetActive SCHEME_CURRENT
AND/OR
Turn_OFF_Adaptive_brightness_on_battery.bat
(Content of BAT file for reference)
Code:
powercfg -setdcvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 0
powercfg -SetActive SCHEME_CURRENT
4 Save the .bat file to your desktop.
5 unblock the .bat file.
6 Double click/tap on the .bat file to run it.
7 You will now notice a command prompt quickly flash open and close to apply.
8 You can now delete the downloaded .bat file if you like.
OPTION THREE
Turn On or Off Adaptive Brightness in Intel Graphics Control Panel
If you have Intel graphics, then what you have set in the Intel Graphics Control Panel may override what you have set in Option One and Option Two.
If you do not have Intel graphics, then this option does not apply to you.

Laptop Display Automatically Changing Brightness of Screen
Describes how to keep a built-in display from changing brightness automatically due to power settings.

1 Open the Intel Graphics Control Panel.
2 Click/tap on the Power icon. (see screenshot below)
3 Do step 4 (enable) or step 5 (disable) below for what you want.
4 Turn On Adaptive Brightness in Intel HD Graphics Control Panel
A) Select On Battery or Plugged in, and select the plan (ex: "Balanced Mode") for what you want to apply this to. (see screenshot below)
B) Select (check) Enable under Display Power Saving Technology, and adjust the slider to the level you want.
C) Click/tap on Apply, and go to step 6 below.
5 Turn Off Adaptive Brightness in Intel HD Graphics Control Panel
A) Select On Battery or Plugged in, and select the plan (ex: "Balanced Mode") for what you want to apply this to. (see screenshot below)
B) Select (check) Disable under Display Power Saving Technology, and click/tap on Apply, and go to step 6 below.
6 Click/tap on Yes to confirm. (see screenshot below)
Your changes will automatically be reverted in 15 seconds if you do not click/tap on Yes to confirm.
That's it,
Shawn Brink
Related Tutorials
Attachments
Last edited: