virtualbox.org

Hello,

I explain to you my problem:

I need to create a virtual machine on Ubuntu / Debian / Fedora whatever.
I am on windows 10.
I create my machine, 4GB of ram, 90GB hard drive VDI / VDMK (I tried both), with the OS in x64 download directly through the manufacturer's website.
So I try with the three distribution.

The machine launches, I choose my distribution, the first page for the installation appears then big freeze on the virtual machine.
Nothing can be done, nothing works so need to close the machine.

I already uninstall and reinstall properly.

Sorry, for my bad english !

It seems that you have Hyper-V enabled. You can tell if this is true from the status bar where the "slow" icon () shows. Look in the "Control Panel" » "Programs and Features" » "Turn Windows features on or off", and make sure that the none of the following are active:

• Application Guard
• Credential Guard
• Device Guard
• <any> * Guard
• Containers
• Hyper-V
• Virtual Machine Platform
• Windows Hypervisor Platform
• Windows Sandbox
• Windows Subsystem for Linux (WSL)

If VirtualBox is running without Hyper-V enabled, where proper, hardware virtualization is actually available, then the standard virtualization icon () would show. Disable Hyper-V in your host and see what happens...

If that doesn't work, enter the following command:

• 
  bcdedit /set hypervisorlaunchtype off

followed by a cold boot, i.e. shut down the computer, pull the power plug for 10", reboot.

Thank you, it was an accounting problem with "Device / Credential Guard"

I disabled HyperV + Virtualization Based Security

Thanks for reporting back. Marking as [Resolved].