Fix 0x800f080c Hyper-V error on Windows 10

[manliya]

Use the following methods to resolve the error code 0x800f080c, which occurs when installing or changing anything with Hyper-V.

Use Correct Command

VirtualBox issue

You will need an administrator account to execute the below-mentioned suggestions.

1] Use Correct Command

While Microsoft Docs has the command mentioned that needs to be used, it is still incorrect. This was reported by one of the users. So use the command mentioned below to enable Hyper-V on Windows 10 is:

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-All

The Microsoft Docs command has a space between -V and -All, which should not have been there. Hope they correct it soonest.

2] VirtualBox issue

If you face the problem in VirtualBox, you need to turn Core Isolation Memory Integrity back off again.

Open Windows Security > Device security > Core Isolation > Core isolation details > Toggle on Memory integrity.

If that doesn’t work out, you can enable a Registry setting.

Navigate to the location in the registry, and set the value of Enabled to 0.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity\Enabled

I hope you were able to resolve the 0x800f080c Hyper-V error on Windows 10.

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