4 tips to enable Nested Virtualization like a PRO

Enable Nested Virtualization in VirtualBox for Windows 10 or Windows 11

Table of Contents:

Problem Description
Solution
Steps for BIOS
Turn Nested Virtualization On

PROBLEM DESCRIPTION

Nested virtualization is used to enable, use or create virtual machines within virtual machines, consider Virtualbox is running CentOS virtual machine and within that virtual machine someone wants to create another virtual machine of Windows.

VirtualBox out of the box doesn't not enable Nested Virtualization, this need to be enabled and have the following procedure.

SOLUTION:

Below is the step-by-step procedure to turn Hyper-V ON/OFF:

Open CMD as administrator
Turning hyper-v OFF with and a reboot:
bcdedit /set hypervisorlaunchtype off
To TURN it back ON (or auto start) and reboot:
bcdedit /set hypervisorlaunchtype

Steps for BIOS:

Enable Intel Virtualization Technology
Enable VT-d

Turn Nested Virtualization On

Open Command Prompt with Administrator privileges
cd C:\Program Files\Oracle\VirtualBox
VBoxManage modifyvm "OSNAME" --nested-hw-virt on

Change OSNAME with your virtual machine name.

Sources:

https://forums.virtualbox.org/viewtopic.php?f=1&t=62339https://forums.virtualbox.org/viewtopic.php?f=6&t=87752

https://blogs.technet.microsoft.com/gmarchetti/2008/12/07/turning-hyper-v-on-and-off/

http://alitech.uk/index.php/2021/10/17/nested-virtualization-windows10-11/

https://www.youtube.com/watch?v=yp9CFQhEaUg

Keywords:

Virtualbox, Nested Virtualization, Windows 10, Windows 11, Enable, Hardware Virtualization, Hyper-V

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