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Windows10 VM on Windows10 Host Freezes/BSOD IRQL NOT LESS OR EQUAL

Posted: 5. Apr 2022, 21:00
by sthsanchez1
Upgrading my image from 1909 to 21H2

New image is created and now trying to install all necessary software. After a few minutes, windows within the VM crashed and gives the IRQL NOT LESS OR EQUAL error. I tried my old image which used to work and now is giving the same error message. Anyone know what might be causing this? I have went ahead and attached my log.


Don't believe this is an issue with the host computer, but did run sfc /scannow. Corrupt files were detected and fixed.
I Upgraded the VB to the latest version 6.1.32

Re: Windows10 VM on Windows10 Host Freezes/BSOD IRQL NOT LESS OR EQUAL

Posted: 6. Apr 2022, 09:51
by mpack
The VM could do with a second CPU core (no more). Also you could enable 3D acceleration, which should improve graphics performance generally.

Your main problem is probably that you have Hyper-v enabled.
00:00:04.062171 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
00:00:04.147764 NEM: info: Found optional import WinHvPlatform.dll!WHvQueryGpaRangeDirtyBitmap.
00:00:04.147848 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...
See HMR3Init: Attempting fall back to NEM (Hyper-V is active).