Specify the display dim brightness (plugged in)
- Policy ID
- DisplayDimBrightnessAC
- Scope
- Computer Configuration
- Supported on
- At least Windows Server 2008 R2 or Windows 7
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- System › Power Management › Video and Display Settings
Description
This policy setting allows you to specify the brightness of the display when Windows automatically reduces brightness of the display.
If you enable this policy setting, you must provide a value, in percentage, indicating the display brightness when Windows automatically reduces brightness of the display.
If you disable or do not configure this policy setting, users control this setting.
Options
Registry
ComputerHKEY_LOCAL_MACHINE
HKLM\Software\Policies\Microsoft\Power\PowerSettings\f1fbfde2-a960-4165-9f88-50667911ce96 View registry values
- ACSettingIndexREG_DWORD