How to Install Windows 11 in VirtualBox

The new version of Windows, Windows 11, is coming out later this year. As an IT enthusiast or professional, you probably want to test it out. See the new layout for yourself, and test the new look and feel of Windows 11. The best way to do this is in a VirtualBox.

Even though the first stable beta versions are released of Windows 11, it’s still not a good idea to upgrade your work/daily computer to Win 11 yet. But you can safely download and install Windows 11 in a VirtualBox.

With VirtualBox, you don’t need to worry about the TPM, because that’s only a requirement for physical machines, not for virtual ones.

In this article, I am going to walk you through downloading the official Windows 11 ISO and the installation of VirtualBox and Windows 11.

1. Download Windows 11 Official ISO

So the first step is to download the official Windows 11 ISO from Microsoft. To download the ISO you will need to be a Windows Insider. If you are already one, then you can skip the first step, otherwise, follow along to register yourself as a Windows insider.

Step 1 – Register for the Windows insider program

To register for the Windows Insider program you will need to have a Microsoft account (the account that you use for Outlook, Microsoft Office / 365, etc). If you sign up for the Windows Insider program then you get early access to the latest features and Windows Update.

Head over to https://insider.windows.com in click on Register.

Log in with your Microsoft account and accept the Program Agreement and click on Register Now. After the successful registration, you will be taken to the Windows Insider page.

Step 2 – Download the Windows 11 Official ISO

With the Insider registration completed, we can download the official ISO for Windows 11. The file size of the ISO file is around 5Gb.

  1. Navigate to Windows Insider Preview Downloads page
  2. Scroll all the way down, just below the grey box you will see Select Edition

download windows 11 official iso
  1. Select the latest Windows 11 Insider Preview (Beta Channel)
  2. Click Confirm
  3. Select the desired language and click Confirm
  4. You will now see a download link that is only valid for 24 hours
  5. Click on 64-bit Download

2. Install VirtualBox

While the ISO file is downloading we can continue with installing VirtualBox and creating the virtual machine.

virtualbox

If you don’t already have it installed then you will need to download and install it. You can find the download here at virtualbox.org. Install the Virtualbox application with all the pre-selected features.

3. Create Virtual Machine for Windows 11

To install Windows 11 we will need to create a new virtual machine in VirtualBox. I have created the virtual machine with minimum specifications. Depending on your use case you may want to give your VM more memory and diskspace.

  1. Open VirtualBox Manager and click on New
  2. Give you VM a name
  3. Select a location to store the VM, make sure you have atleast 20Gb diskspace free
  4. Make sure type is set to Microsoft Windows
  5. Select Windows 10 (64-bit) as version
  6. Give the VM atleast 4096MB Memory (more is better, but keep some left you for computer self)
  7. Click on Create

Next, you will need to create the Virtual Hard Disk. The requirements for Windows 11 are 64Gb disk space, but my VM only uses 11Gb at the moment. So you can start with a small dynamically allocated disk of 20Gb. You can always increase the disk space later when needed.

Change the disk size to your requirements and click on Create

The virtual machine is now created. Before we start it we need to change one setting, the number of vCPU’s. By default the VM only gets 1 vCPU, which is not much. To improve the performance of your VM you should increase it to at least two.

Assigning vCPU’s

Assign no more then N-1 vCPU’s to your VM where N = the number of physical core on your computer. This way you keep one core free for your host, in the event that your VM locks up or use all your cores.
Virtualbox windows 11
  1. Select your VM on the left side
  2. Click on Settings in top bar
  3. Select System > Processor
  4. Change the Processor(s) to atleast two
  5. Click Ok

4. Install Windows 11 in VirtualBox

We are now ready to start our new virtual machine and install Windows 11. In VirtualBox click on Start to start your new VM. VirtualBox will prompt you for a start-up disk.

  1. Click on the folder icon to select the Windows 11 ISO file

    Select Win 11 Startup disk

  2. Add the Win 11 ISO file to the Optical Disks

    Click on Add to select the Windows 11 ISO file that we downloaded
    Select the file and click on Choose

  3. Start the VM

    Click on Start to start the VM with the Win 11 ISO disk

  4. Start the Windows 11 installation

    Select the language that you want to install and click Next.
    On the next screen click Install Now

    Windows 11 installation

  5. Product key

    Simply click “I don’t have a product key”
    Windows 11 product key

  6. Choose version to install

    You can choose which version of Windows 11 you want to install. Just pick Windows 11 Pro and click Next

    Windows 11 Pro

  7. Installation type

    Accept the user agreement and click Custom: Install Windows only on the next screen.

    Custom installation

  8. Select the disk

    The last step is to select the disk to install Windows 11 on. Windows 11 will now be install in your VirtualBox.

    windows 11 download and install

  9. Windows 11 finalization

    The VM will reboot after the installation, starting Windows 11 for the first time. Just like with Windows 10 you will need to go through a wizard to finalize your Windows 11 installation.

    During the set up wizard you will get the option to sign in with your Microsoft account. Make sure you use the same account as that you used to sign up for Windows Insider

    Windows 11 Insider

5. Install VirtualBox Guest Additions in Windows 11

After the installation is finished we need to do a couple of things to make working with the VirtualBox more convenient.

  • Installing the VirtualBox Guest Additions
  • Make the clipboard bi-directional (allowing your to copy/past between host and VM)
  • Enabling bi-directional Drag and Drop.

Installing the VirtualBox Guest Additions

To install the VirtualBox Guest Additions we can mount a virtual cd.

Install Windows 11 in VirtualBox
  1. In VirtualBox click on Devices
  2. Select Insert Guest Additions CD image
  3. Open the Explorer in Windows 11
  4. Select and open the CD Drive (D:)
  5. Start the VBoxWindowsAdditions application
  6. Click Yes on the User Account Control warning
  7. The installation may minimize to the taskbar, open from the taskbar again if necassary
  8. Install the Guest Additions (just click next, install)
  9. Select I want to manually reboot later

VirtualBox Clipboard and Drag and Drop settings

Before we reboot the Windows 11 VM we first change the clipboard and drag and drop settings.

  1. Again click on Devices
  2. Choose Shared Clipboard and select Bidirectional
  3. Do the same for Drag and Drop, also under Devices
  4. Restart your Windows 11 machine

Wrapping Up

In VirtualBox you can safely test out Windows 11. If you give the virtual machine enough memory, diskspace and CPU’s then you can also install the programs that you use on it to see if they work.

If you have any questions, just drop a comment below.

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