HMR3Init: Attempting fall back to NEM (Hyper-V is active)

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bbahes
Posts: 3
Joined: 24. Oct 2020, 10:19

HMR3Init: Attempting fall back to NEM (Hyper-V is active)

Post by bbahes »

Today I lost whole day trying to disable/remove Hyper-V from Windows 10 Pro.
TLDR: After trying everything...standard removal techniques using GUI and CLI and even bcdedit /set hypervisorlaunchtype off I still had "green turtle icon".
The only thing that solved my problem and completely removed Hyper-V was using Device Guard and Credential Guard hardware readiness tool: DG_Readiness_Tool_v3.6.ps1 -Disable -AutoReboot

Maybe this helps someone...
scottgus1
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Re: HMR3Init: Attempting fall back to NEM (Hyper-V is active)

Post by scottgus1 »

Thanks for your report!

FWIW HMR3Init: Attempting fall back to NEM (Hyper-V is active) mentions disabling Device Guard and Credential Guard, and gives some suggestions for removing Device Guard.

However, this tool you reported using is new to me. Where did you see it?
bbahes
Posts: 3
Joined: 24. Oct 2020, 10:19

Re: HMR3Init: Attempting fall back to NEM (Hyper-V is active)

Post by bbahes »

scottgus1 wrote:Thanks for your report!

FWIW HMR3Init: Attempting fall back to NEM (Hyper-V is active) mentions disabling Device Guard and Credential Guard, and gives some suggestions for removing Device Guard.

However, this tool you reported using is new to me. Where did you see it?

Found it on https://superuser.com/a/1717074
scottgus1
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Re: HMR3Init: Attempting fall back to NEM (Hyper-V is active)

Post by scottgus1 »

Great, Thanks!

For others' reference, the tool is documented at https://learn.microsoft.com/en-us/windo ... tial-guard (Link on the Super User site)
fth0
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Re: HMR3Init: Attempting fall back to NEM (Hyper-V is active)

Post by fth0 »

@scottgus1:

While those documentations are a valuable resource, they have been updated in 2023 and I didn't see a link to the tool any more. The tool itself can be found currently here: Device Guard and Credential Guard hardware readiness tool.
scottgus1
Site Moderator
Posts: 20965
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
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Re: HMR3Init: Attempting fall back to NEM (Hyper-V is active)

Post by scottgus1 »

Thanks, fth0!
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