Policy

Configure local administrator merge behavior for lists

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassComputer
CategoryWindows Components > Microsoft Defender Antivirus
Supported onAt least Windows Server 2012, Windows 8 or Windows RT

Supported OS tags: Windows10, Windows10RT, Windows11, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2012, WindowsServer2012R2, WindowsServer2016

This policy setting controls whether or not complex list settings configured by a local administrator are merged with Group Policy settings. This setting applies to lists such as threats and Exclusions. If you disable or do not configure this setting, unique items defined in Group Policy and in preference settings configured by the local administrator will be merged into the resulting effective policy. In the case of conflicts, Group policy Settings will override preference settings. If you enable this setting, only items defined by Group Policy will be used in the resulting effective policy. Group Policy settings will override preference settings configured by the local administrator.

Internal name
DisableLocalAdminMerge
Policy ID
1d1fcaa1ebe3
Elements
0

Registry values

How enabled and disabled states update the registry.

Registry locationTypeEnabled valueDisabled value
HKLM\Software\Policies\Microsoft\Windows Defender\DisableLocalAdminMergeREG_DWORD
1
0

Policy elements

Inputs and configuration options exposed by this policy.

This policy has no additional user input fields.

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