Policy overview

Key metadata and intent for this policy.

ClassComputer
CategoryWindows Components > Microsoft Defender Antivirus > Real-time Protection
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 allows you to configure monitoring for incoming and outgoing files, without having to turn off monitoring entirely. It is recommended for use on servers where there is a lot of incoming and outgoing file activity but for performance reasons need to have scanning disabled for a particular scan direction. The appropriate configuration should be evaluated based on the server role. Note that this configuration is only honored for NTFS volumes. For any other file system type, full monitoring of file and program activity will be present on those volumes. The options for this setting are mutually exclusive: 0 = Scan incoming and outgoing files (default) 1 = Scan incoming files only 2 = Scan outgoing files only Any other value, or if the value does not exist, resolves to the default (0). If you enable this setting, the specified type of monitoring will be enabled. If you disable or do not configure this setting, monitoring for incoming and outgoing files will be enabled.

Internal name
RealtimeProtection_RealtimeScanDirection
Policy ID
a9d51b1c7b70
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ElementTypeRegistry mappingConstraints & behavior
Configure monitoring for incoming and outgoing file and program activity
ID RealtimeProtection_RealtimeScanDirection
enum
HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection\RealtimeScanDirection
Type REG_DWORD
Options: bi-directional (full on-access) (0), scan only incoming (disable on-open) (1), scan only outgoing (disable on-close) (2)

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