Policy

Enumeration policy for external devices incompatible with Kernel DMA Protection

Microsoft Windows

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Enumeration policy for external devices incompatible with Kernel DMA Protection
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Policy overview

Key metadata and intent for this policy.

Computer
Category
System > Kernel DMA Protection
Supported on
At least Windows Server 2016, Windows 10

Supported OS tags: Windows10, Windows10RT, Windows11, WindowsServer2016

Enumeration policy for external DMA-capable devices incompatible with DMA remapping. This policy only takes effect when Kernel DMA Protection is enabled and supported by the system. Note: this policy does not apply to 1394, PCMCIA or ExpressCard devices.

Internal name
DmaGuardEnumerationPolicy
Policy ID
14657a25627b
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.

ScopeElementTypeRegistry mappingConstraints & behaviorCopy
Computer
Enumeration policy
ID DmaGuardEnumerationPolicy_Options
enum
Path
Software\Policies\Microsoft\Windows\Kernel DMA Protection
Value name
DeviceEnumerationPolicy
Type
REG_DWORD
Options: Block all (0), Only while logged in (default) (1), Allow all (2)
Enumeration policy
Computer · Type enum
Registry mapping
Path
Software\Policies\Microsoft\Windows\Kernel DMA Protection
Value name
DeviceEnumerationPolicy
Type
REG_DWORD
Details
Options: Block all (0), Only while logged in (default) (1), Allow all (2)