2

New Windows11 setup with Oracle VM Virtualbox 6.1, trying to install first VM using CentOS Stream9 iso. During iso boot system crashes: Kernel panic - not syncing: Fatal exception. I thought there was something wrong with virtualization settings, so I tried to check those: In BIOS of the host enabled those:

  • Hyperthreading
  • VTx
  • VTx for Directed I/O (VTd)

In Windows Features I have disabled Hyper-V and underlying Hyper-V Management Tools, Hyper-V platform.

I noticed that on another PC I have Execution engine: VT-x/AMD-V whilst on the new PC it uses Native API (aka turtle mode), also Nested Paging and Unrestricted Execution are inactive.

Any ideas on how to fix that?

Improve this question
1
  • Try making a new, different virtual machine to see if that works. I am using VMware on Windows 11 and Hardware Virtualization is enabled in BIOS. Linux VMs work fine.
    – anon
    Commented Jul 24, 2022 at 11:53

1 Answer 1

Reset to default
0

Cause: Windows Device Guard protects against virtualization-related attacks or something like that. Unfortunately idk how to allow a particular app to work under Device Guard, but here is how to disable it:

  • run GPEDIT.MSC
  • go to computer configuration \administrative templates \system\ device guard
  • right click on "turn on virtualization-based security", choose "edit", then "disabled"
  • click "apply", then "ok" and close group policy editor
  • type GPUPDATE /FORCE in cmd and hit Enter
  • wait until complete then reboot windows.

source

Improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .