Enumeration policy for external devices incompatible with Kernel DMA Protection

Supported on: At least Windows Server 2016, Windows 10

Registry

HKLM Software\Policies\Microsoft\Windows\Kernel DMA Protection

Options

DeviceEnumerationPolicy enum
  • Block all -> 0
  • Only while logged in (default) -> 1
  • Allow all -> 2

Description

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.