I accidentally disabled kernel DMA protection.

Question

I accidentally disabled kernel DMA protection.

What should I do to get it back up?

Answer 1

Hi,

Please try these steps below

• Reboot into UEFI settings
• Turn on Intel Virtualization Technology
• Turn on Intel Virtualization Technology for I/O (VT-d)
• Reboot system into Windows

If the state of Kernel DMA Protection remains Off, then the system doesn't support Kernel DMA Protection.

https://learn.microsoft.com/en-us/windows/security/information-protection/kernel-dma-protection-for-thunderbolt

Best Regards,

Ian Xue

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