Try It in VirtualBox

You want to try something your computer might not survive. A different operating system. A program that no longer runs. A setting you read about. Software you are not sure about yet. VirtualBox lets you do it inside a second computer that lives in a window on your screen - one you can break, restore, and start over, while the machine you depend on stays untouched. This guide takes you from a first install to a virtual machine you trust, in order, without assuming you have run one before. You will check your computer for the settings that quietly slow VirtualBox down, build a virtual machine, install a real operating system in it, add the Guest Additions that make it pleasant to use, and learn the habit everything else rests on: take a snapshot before you change anything, so every experiment has an undo. Then you will open the doors between the virtual machine and your own computer one at a time, on purpose - networking, shared folders, the clipboard, USB devices - and learn what each one exposes. You will clone, move, and export your machine, and fix the problems beginners actually run into. Written for Windows, Mac, and Linux users, including exactly what an Apple silicon Mac can and cannot run. Plain language, no prior experience assumed.