[Solved] Some VM crash when guest OS boot after hardware change

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[Solved] Some VM crash when guest OS boot after hardware change

Postby Eyquinox » 21. Apr 2021, 22:18

Fact: I recently changed my PC hardware (except OS MS Windows10 Pro x64 (no new installation), files and graphics card), I changed my Intel processor to AMD.
Action I performed: I checked in the bios if the SVM mode is activated. I also uninstalled Hyper-V which I used to use as a hypervisor.
Frequency of issue: This issue affects all VMs created before I changed my hardware and some newly created VMs.

I use VirtualBox 6.1.18

Attached is the log and a screenshot of the last VM I created and tried to launch.

Thanks in advance for your help,
Equinox
Attachments
VBox-log.zip
log (compressed)
(57.63 KiB) Downloaded 3 times
VBox.png
Screenshot
VBox.png (12.83 KiB) Viewed 145 times
Eyquinox
 
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Re: Some VM crash when guest OS boot after hardware change

Postby mpack » 22. Apr 2021, 10:06

00:00:02.686166 HM: HMR3Init: Attempting fall back to NEM: AMD-V is not available
00:00:02.721153 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...

HMR3Init: Attempting fall back to NEM (Hyper-V is active)
mpack
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Posts: 33667
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP

Re: Some VM crash when guest OS boot after hardware change

Postby Eyquinox » 23. Apr 2021, 01:32

Thank-you for your help.

I disabled :
DeviceGuard
CredentialGuard
Windows Defender's Core Isolation

And run both commands in terminal:
bcdedit /set hypervisorlaunchtype off
DISM /Online /Disable-Feature:Microsoft-Hyper-V

Then shutdown and after restart.

And it works now.

Thanks again.
Eyquinox
 
Posts: 2
Joined: 21. Apr 2021, 21:44

Re: [Solved] Some VM crash when guest OS boot after hardware change

Postby mpack » 23. Apr 2021, 10:02

Thanks for reporting back.
mpack
Site Moderator
 
Posts: 33667
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP


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