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Home Internet

Fix VMware Device/Credential Guard & VirtualBox – Error

Ali by Ali
December 15, 2020
in Internet
3
Fix Device/Credential Guard or VirtualBox Error on VMware & VirtualBox

Fix Device/Credential Guard or VirtualBox Error on VMware & VirtualBox

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In this article, we are going to share with you How to Fix VMware Device/Credential Guard & VirtualBox – Error. If you’re a guy who switches to operating systems on virtual machines occasionally, you’ve probably encountered this problem. This happens when you attempt to install or work with an operating system on a virtual machine in a program with another virtualization program (Hyper-v) installed.

VirtualBox - Error
VirtualBox – Error

In other words, if you’ve Hyper-v installed on your computer with VMware and VirtualBox or one of them, you’ll likely get this error. This error is apparently different on the programs as VMware does show for disabling credential guard or VirtualBox simply gives the error of failed session. They all are the same thing. The reason is that Hyper-v and VMware can’t function and work at the same time, due to the credential guard. This feature (credential guard) uses hardware virtualization or virtualization-based security that only privileged system software can access them. Due to that, this will definitely interfere or literally won’t let VMWare or VirtualBox VM’s you want to use.

When multiple programs particularly Hyper-v use the same technology, (even not using at the same time), the Hyper-v installed on your Windows will prevent access to hardware virtualization for other programs, due to security reasons and already being in use of Hyper-V.

In this case, you’ll probably need to get rid of and uninstall Hyper-v, or a better solution maybe, you can disable particularly the only single feature of Hyper-v that uses VT-x and develop the problem. However, you can work and run VMware, VirtualBox without having to uninstall Hyper-v, except the Hyper-v hypervisor feature. Here’s how to diagnose and fix it.

Fix VMware Device/Credential Guard & VirtualBox – Error

Whatever version of Windows you’re using and whether you’re using VirtualBox or VMware, the steps will certainly work for the problem. There are two ways you can fix this. The easiest and favorite you’d like to do will be with command prompt using commands.

The process to this is pretty straightforward. All you have to do is uninstall or disable the Hypervisor feature of Hyper-v that installs with Hyper-v when you enable.

To do that, first off, launch Command Prompt as Administrator. For that, hit the start menu or search button on your taskbar and type cmd. When the Command Prompt appears, right click and choose Run as Administrator. When you’re prompted to run, click Yes.

Run CMD As Administrator
Run CMD As Administrator

When the Command Prompt opened, run the following commands. This will just disable the Hypervisor feature from Hyper-v, that won’t damage the Hyper-v or its virtual machines. So don’t worry, this won’t do anything wrong.

bcdedit /set hypervisorlaunchtype off

Turn off Hypervisor
Turn off Hypervisor

In order to apply this, you’ll need to restart your computer, for that, just enter this.
shutdown /r /t 0

Commands
Commands

Once you’ve restarted, navigate to VMware or VirtualBox you’re using, and switch on a virtual machine, it will probably run and work fine.

Note: If you don’t use or work with Hyper-v, you are good to uninstall it completely instead of only disabling a feature.

Virtual Machine Running
Virtual Machine Running

Or if you were about to install macOS Mojave or another operating system, you’ll be able to do that fairly.

Installing macOS Mojave
Installing macOS Mojave

And you’re done! Now you can run virtual machines on both VMware and VirtualBox without hesitation.

In case if the solution above didn’t work for you, you may need to uninstall Hyper-v completely including features. It should work correctly. If there’s something left or you have an idea for us, we are impatiently waiting to listen to you.

Tags: Credential GuardDevice GuardfixVirtualBoxVMware
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Comments 3

  1. Chalres Dong says:
    3 years ago

    Thanks! It works!

    Reply
  2. Jonathan Brenks says:
    3 years ago

    This helped me a lot! Thanks!

    Reply
  3. Michael Barrett says:
    4 years ago

    Hi Ali,

    I wish I could have seen this as early as possible so I wouldnt have to waste my time talking to MS Techs who dont know how to fix this thing.

    Thanks a Lot!

    Reply

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