Windows 10: Server 2025 Hyper-V New instance error "key protector could not be unwrapped"

I just setup 4 Server 2025 servers and installed the Hyper-V Feature. However, when I go to create a new VM host from MS ISO for Windows 11 I get the following:The key protector could not be unwrapped. Details are included in the HostGuardianService-Client event log.The event logThe remote attestation request failed because Isolated User Mode could not be detected. Verify that the Isolated User Mode feature is installed and that Virtualization Based Security has not been disabled manually or by local/domain-level policy. Event IDs 1025 and 3025 represent the same event.So, I do not need Host G

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Windows 10 Hyper-v instance activation

I have purchased a windows server 2016 standard version with a 16 core license and I am running it on a 4 core machine.

I was under the impression that I should be able to run at least 2 Hyper-V instances on this machine.

But I've installed one Windows 10 Hyper-V and I can't activate it!

Please help...

 

Windows 10 Hyper-v instance activation

Andre,

I'm not sure if I understand you correctly.

When you say "it is good for additional instances of Windows server" does that mean that if I change my Hyper-v from Windows 10 to Windows server 2016 then it will activate?

Thanks in advance for your time.

 

Hyper-V

Hi Daniel. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.

You can remotely manage Hyper-V hosts with Hyper-V Manager:

https://docs.microsoft.com/en-us/windows-server...

https://www.altaro.com/hyper-v/how-to-set-up-hy...

Hv Manager

https://searchservervirtualization.techtarget.c...

I hope this helps. Feel free to ask back any questions. Please report back results for all steps given so I know what else to suggest if necessary.

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