Windows Quick Command

Calculate File Hash on Windows

certutil -hashfile .\filename MD5
certutil -hashfile .\filename SHA256

Calculate File Hash using Powershell

Get-FileHash -Path .\ubuntu-22.04.1-desktop-amd64.iso -Algorithm SHA256

VirtualBox enable Nested VT-x/AMD-v

VBoxManage modifyvm 'VirtualMachineName' --nested-hw-virt on

Install VirtualBox 7.x Guest Addition for Ubuntu 22.04

sudo apt update
sudo apt install build-essential dkms

# Insert the Guest Addition via VirtualBox machine menu > Devices > Insert Guest Additions CD image...
sudo mkdir -p /media/cdrom
sudo mount /dev/cdrom /media/cdrom

cd /media/cdrom
sudo ./VBoxLinuxAdditions.run