Enumeration policy for external devices incompatible with Kernel DMA Protection

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.

Supported on: At least Windows 10 Server, Windows 10 or Windows 10 RT

Enumeration policy


  1. Block all
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSoftware\Policies\Microsoft\Windows\Kernel DMA Protection
    Value NameDeviceEnumerationPolicy
    Value TypeREG_DWORD
    Value0
  2. Only while logged in (default)
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSoftware\Policies\Microsoft\Windows\Kernel DMA Protection
    Value NameDeviceEnumerationPolicy
    Value TypeREG_DWORD
    Value1
  3. Allow all
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSoftware\Policies\Microsoft\Windows\Kernel DMA Protection
    Value NameDeviceEnumerationPolicy
    Value TypeREG_DWORD
    Value2


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