Install windows 11 in virtual box

How to install Microsoft Windows 11 on VirtualBox! (oracle.com)

Step 1: Download windows 11, 90 day trail version

Direct download link for iso: https://software-download.microsoft.com/download/sg/888969d5-f34g-4e03-ac9d-1f9786c66749/22000.318.211104-1236.co_release_svc_refresh_CLIENTENTERPRISEEVAL_OEMRET_x64FRE_en-us.iso

Website: https://www.microsoft.com/en-us/evalcenter/evaluate-windows-11-enterprise

Step 2: Open System settings in virtual box

• System - Motherboard
• RAM: 4GB (minimum) - 8GB (minimum suggested)
• EFI (Special OSes only) enabled
• 
  
• System - Processor
  • CPU: 2 (minimum)

Step 3: 

• Storage
• 64 GB Virtual Disk (minimum size)
• 
  
• Step 4:
• Display - Screen
• Video Memory: 256MB
• Graphics Controller: VBoxSVGA
• Enable 3D Acceleration enabled

Step 5: Regedit settings

Click next to show-up the "Install now" button; when you see the installation button, press "Shift+F10" on your keyboard at the same time to launch a command prompt. At this command prompt, type "regedit" and press enter to launch the Windows Registry Editor.

When the Registry Editor opens, navigate to "HKEY_LOCAL_MACHINE\SYSTEM\Setup", right-click on the "Setup" key and select "New => Key".

When prompted to name the key, enter "LabConfig" and press enter.

Now right-click on the "LabConfig" key and select "New => DWORD  (32-bit)" value and create a value named "BypassTPMCheck", and set its data to "1". With the same steps create the "BypassRAMCheck" and "BypassSecureBootCheck" values and set also their data to "1", so it looks like the following image.

With those three values configured under the "LabConfig" key, close the "Registry Editor", and then type exit in the "Command Prompt" followed by enter to close the window. You can now click on the "Install now" button to proceed to get "Microsoft Windows 11" installed as a virtual-machine on top of VirtualBox.