Whenever enable "virtual machine platform" (or "core isolation") PC goes bluescreen with "UNMOUNTABLE_BOOT_VOLUME" on windows11 22h2

Question

Hi. I recently upgraded to windows 11 22H2 and now I want to use WSL2. So I tried to enable "virtual machine platform" (or "core isolation") but after a restart, it shows a bluescreen with "UNMOUNTABLE_BOOT_VOLUME". Auto repair does not work. I manually enter safe mode and it rolls back the virtual machine platform and my PC boots again.

Try to find logs or minidumps but cannot see any. This problem does not exist in windows 11 21H1 as I used WSL2 all the time. Contacted Microsoft support but it only asked me to install all optional features (drivers mostly) but nothing changed: still not able to enable the Virtual Machine Platform. Tried resetting the PC (keeping files) and not helps.

No idea what is needed to provide so please tell me anything you need.

Answer 1

seems to be fixed in 22621.607

https://blogs.windows.com/windows-insider/2022/09/22/releasing-windows-11-build-22621-607-to-the-release-preview-channel/

• We fixed an issue that affects some processors. This issue occurs when you turn on Hyper-V and kernel Direct Memory Access (DMA) protections.

so, microsoft support sucks. no one can correctly answer my question.

Answer 2

Thanks. What happens when you try to install WSL through:

wsl --install

command? It should automatically enable the components?

Right-click Start>Run.

Type in msinfo32 and press enter.

Take a screenshot of the System Summary window and post it in the next reply.

Answer 3

Here you are the link: https://aka.ms/AAi4t35

Answer 4

Hi,

I am Sumit here to assist you with this question.

Can you file a feedback report and send me the link?