Windows 10: BSOD and then BIOS DMA Protection Error after Windows Update

Good Morning,Over the last two weeks we have had 7 HP Elitebooks 840 G8's experience the same problem.1. The laptop undergoes a Windows update.2. The user is prompted to reboot.3. After the reboot, the user puts their credentials in at the login screen.4. The laptop blue screens and then reboots.5. The laptop throws a DMA Protection Error.Sometimes the user can log in after 10 reboot and logins.I suspect it is an update, but I cannot pin it down.Please find below the minidump.https://mypartssource-my.sharepoint.com/:f:/p/cfontanella/EiTUfcQdlTNKpY_XERoRwyIBqbBAD-yFRL97R5H4tgOBPw?e=t2awpf

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how to enable kernel dma protection

Good day! I am Independent Advisor Paul R. and also a Microsoft/Windows user like you and I am glad to be able to provide assistance to you today. I understand that you are looking to enable the Kernel DMA protection.

Windows 10 home does not exactly support the Hyper-V role/feature in which it can deter with this feature that you are looking to use but if you still want to check your system then you can check the steps below and hopefully this helps out with your query.

- Open the Run window and type msinfo32 and press Enter

- This should open the System Info window, check and find the Kernel DMA Protection option in the list and check if it’s on or off

- If it is on it means that your System is protected from drive by DMA attacks

- If it is off and Virtualization Enabled in Firmware has yes then it means your System does not support the protection feature

- In the event that the feature is off and the Virtualization Enabled in Firmware has no then your System supports the protection feature

Regards,

Paul R.

 

Kernel DMA protection

Hello @Ulysses,

This might help explain it => Kernel DMA Protection

I hope this helps.

 

Kernel DMA Protection Status OFF/Risk?

Memory integrity has nothing to do with kernel dma protection. You can enable memory integrity and see if any driver is causing problems when it is enabled. For kernel dma protection the computer must be compatible otherwise it cannot be activated. It activates automatically but if it is not activated then maybe the Intel Virtualization Technology is not activated in the bios. In this article start https://docs.microsoft.com/en-us/win...or-thunderbolt reading from "How to check if Kernel DMA Protection is enabled" for in depth explanation...