Forum Discussion

C-Fou's avatar
C-Fou
Copper Contributor
Dec 16, 2022
Solved

Windows 11 22h2 enabling Hyper-V cause BSOD

Hi, When enabling Hyper-V on Windows 22H2 fresh install (not an upgrade), I've got an WHEA_UNCORRECTABLE_ERROR or an UNMOUNTABLE_BOOT_VOLUME error on first restart (depending on having install last ...
configuration
deployment
  • C-Fou's avatar
    C-Fou
    Jun 30, 2023

    Since no one gave a solution, I reply to my own question to help people who may have the same problem.

    I seems many people go into Windows 11 22H2 madness, despite last updates of everything I could done, I was keeping those weird BSOD, with error changing between installations without any reason.

    In my case, the Kernel DMA Protection in the UEFI Setup was responsible of it. I needed to disable it in order to boot with Hyper-V. I am not able to enable it again after Hyper-V installation correctly done. If so, I go into BSOD again...

    thanks to this thread on hp forum :
    https://h30434.www3.hp.com/t5/Desktop-Operating-Systems-and-Recovery/Inaccessible-Boot-Device-BSOD-after-upgrading-to-Win-11-22H2/td-p/8611767

    This UEFI setting seems causing many problems with this Windows version, with Lenovo, HP or Dell, in some cases it even prevent to install Windows with BSOD of first or second reboot.

    I hope this help

C-Fou's avatar
C-Fou
Copper Contributor
Jun 30, 2023

Since no one gave a solution, I reply to my own question to help people who may have the same problem.

I seems many people go into Windows 11 22H2 madness, despite last updates of everything I could done, I was keeping those weird BSOD, with error changing between installations without any reason.

In my case, the Kernel DMA Protection in the UEFI Setup was responsible of it. I needed to disable it in order to boot with Hyper-V. I am not able to enable it again after Hyper-V installation correctly done. If so, I go into BSOD again...

thanks to this thread on hp forum :
https://h30434.www3.hp.com/t5/Desktop-Operating-Systems-and-Recovery/Inaccessible-Boot-Device-BSOD-after-upgrading-to-Win-11-22H2/td-p/8611767

This UEFI setting seems causing many problems with this Windows version, with Lenovo, HP or Dell, in some cases it even prevent to install Windows with BSOD of first or second reboot.

I hope this help

  • OrinThomas's avatar
    OrinThomas
    Icon for Microsoft rankMicrosoft
    Jul 02, 2023
    Thank you very much C-Fou - this solved a problem that had me flummoxed on one of my ThinkPads.
  • dieterp0203's avatar
    dieterp0203
    Copper Contributor
    Jul 01, 2023

    C-Fou 

    Many thanks to you!!!!

    Since today, hyper-V is running on my system. 

    BIOS --> Security --> Virtualisation --> DMA Protection --> Disable --> Save and restart

    Best regards, Dieter

Resources