Windows 11 Home - Cannot disable Hyper-V ?
Windows 11 Home - Cannot disable Hyper-V ?
I'm running into problems with my VirtualBox guest running on a Windows 11 Home host, version 22H2 build 22621.521
The guest (Windows 10) is showing the dreaded turtle and is performing really bad.
I think that things have gone really bad after the last big update of Windows 11 last week, but I wasn't aware of the turtle before investigating this today, so I don't know if the turtle was already showing before the update
SystemInfo shows: A hypervisor has been detected. Features required for Hyper-V will not be displayed.
VirtualBox logging shows: HM: HMR3Init: Attempting fall back to NEM: VT-x is not available (See attachment)
I've tried following numerous post on the internet about disabling Hyper-V components, but have not succeeded:
Optional Feature:
Hyper-V is not listed
Virtual Machine platform is disabled
Windows Hypervisor platform is disabled
Windows subsystem for Linux is disabled
Windows Core Isolation / Memory Integrity is turned off
I tried following several posts on disabling DeviceGuard and SecurityGuard but I don't find any of the registry keys that are mentioned there
Can anybody help me further with this?
The guest (Windows 10) is showing the dreaded turtle and is performing really bad.
I think that things have gone really bad after the last big update of Windows 11 last week, but I wasn't aware of the turtle before investigating this today, so I don't know if the turtle was already showing before the update
SystemInfo shows: A hypervisor has been detected. Features required for Hyper-V will not be displayed.
VirtualBox logging shows: HM: HMR3Init: Attempting fall back to NEM: VT-x is not available (See attachment)
I've tried following numerous post on the internet about disabling Hyper-V components, but have not succeeded:
Optional Feature:
Hyper-V is not listed
Virtual Machine platform is disabled
Windows Hypervisor platform is disabled
Windows subsystem for Linux is disabled
Windows Core Isolation / Memory Integrity is turned off
I tried following several posts on disabling DeviceGuard and SecurityGuard but I don't find any of the registry keys that are mentioned there
Can anybody help me further with this?
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Re: Windows 11 Home - Cannot disable Hyper-V ?
Yes, this is a pretty common problem, even on Windows Home. There is a guide on this forum - viewtopic.php?f=25&t=99390
If your problem is that the Windows hypervisor is loaded, the bcdedit method in the guide should solve your problem.
If your problem is that the Windows hypervisor is loaded, the bcdedit method in the guide should solve your problem.
Bill
Re: Windows 11 Home - Cannot disable Hyper-V ?
I tried all that, but the second commandline command is not successfull because it cannot find the hyper-v feature.
Then I tried it all again, including removing the battery of my laptop for 20+ seconds .. and now its working!
I must have been too impatient the first time I tried this.
Then I tried it all again, including removing the battery of my laptop for 20+ seconds .. and now its working!
I must have been too impatient the first time I tried this.
Re: Windows 11 Home - Cannot disable Hyper-V ?
I just ran into this using W11 Enterprise when I upgraded from 21H2 to 22H2. According to https://learn.microsoft.com/en-us/windo ... ard-manage, MS forces on Defender Credential Guard in 22H2 Enterprise. I tried the usual things, then started with the more simple solutions on that MS page but could not disable CG. I had to create these reg keys and set to 0 to disable it:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\LsaCfgFlags
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard\LsaCfgFlags
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\LsaCfgFlags
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard\LsaCfgFlags
Last edited by JustinH on 20. Oct 2022, 23:43, edited 1 time in total.
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Re: Windows 11 Home - Cannot disable Hyper-V ?
A short notice for shallow readers:JustinH wrote:W11 Enterprise [...] MS forces on Defender Credential Guard in 22H2
According to the MS source given, this holds true for Windows 11 Enterprise and Windows 11 Education. Not mentioned are Windows 11 Home and Windows 11 Pro.
Re: Windows 11 Home - Cannot disable Hyper-V ?
Thanks for making that more apparent. I had intended to specify Enterprise but forgot. I amended the post.
So, my scenario is not germane to the OP's since Home shouldn't normally be affected. The OP got my attention because 22H2 was mentioned. I was replying so as to maybe help anyone on 22H2 (Ent).
So, my scenario is not germane to the OP's since Home shouldn't normally be affected. The OP got my attention because 22H2 was mentioned. I was replying so as to maybe help anyone on 22H2 (Ent).
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Re: Windows 11 Home - Cannot disable Hyper-V ?
JustinH wrote: ↑20. Oct 2022, 20:44 I just ran into this using W11 Enterprise when I upgraded from 21H2 to 22H2. According to https://learn.microsoft.com/en-us/windo ... ard-manage, MS forces on Defender Credential Guard in 22H2 Enterprise. I tried the usual things, then started with the more simple solutions on that MS page but could not disable CG. I had to create these reg keys and set to 0 to disable it:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\LsaCfgFlags
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard\LsaCfgFlags
This did not seem to work on Windows 11 23H2 Enterprise.
Last edited by Stradman on 22. Feb 2024, 11:29, edited 1 time in total.
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Re: Windows 11 Home - Cannot disable Hyper-V ?
I needed to also add/set the following registry key values to 0:
Code: Select all
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity\EnableVirtualizationBasedSecurity
Code: Select all
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity
Not sure if only one was needed. I just set them both.
(Source: https://www.xda-developers.com/disable- ... indows-11/)
Re: Windows 11 Home - Cannot disable Hyper-V ?
Hi,
I had the same issue, after a windows update the 'turtle' icon came back again.
The only thing that helped for me was :
go to this page from Microsoft : https://www.microsoft.com/en-us/downloa ... x?id=53337
download the tool & extract
open PowerShell as administrator and execute : DG_Readiness_Tool_v3.6.ps1 -Disable
reboot your pc, it will ask during boot to disable the Device Guard or Credential Guard
KR
MoinDix
I had the same issue, after a windows update the 'turtle' icon came back again.
The only thing that helped for me was :
go to this page from Microsoft : https://www.microsoft.com/en-us/downloa ... x?id=53337
download the tool & extract
open PowerShell as administrator and execute : DG_Readiness_Tool_v3.6.ps1 -Disable
reboot your pc, it will ask during boot to disable the Device Guard or Credential Guard
KR
MoinDix