Policy

Configure performance mode status

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassComputer
CategoryWindows Components > Microsoft Defender Antivirus > Real-time Protection
Supported onWindows 11 22H1

Supported OS tags: Windows11

This policy controls Microsoft Defender Antivirus performance mode for Dev Drives. A Dev Drive is a disk drive optimized for higher performance in software development scenarios. When this policy is Enabled or not configured, Performance mode is turned on for Microsoft Defender Antivirus. In Performance mode, Microsoft Defender Antivirus security checks of content stored on Dev Drives are conducted asynchronously to enhance performance. Performance mode requires the following policies also be enabled: “Enable dev drive”, and “Dev drive filter attach policy”. If you either Enable or do not configure this policy setting, Performance mode is turned on. If you Disable this policy setting, Performance mode is turned off and Microsoft Defender Antivirus will protect a Dev Drive in the same way as other drives.

Internal name
RealtimeProtection_PerformanceModeStatus
Policy ID
d36732f5612a
Elements
0

Registry values

How enabled and disabled states update the registry.

Registry locationTypeEnabled valueDisabled value
HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableAsyncScanOnOpenREG_DWORD
0
1

Policy elements

Inputs and configuration options exposed by this policy.

This policy has no additional user input fields.

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