Your real PC running VirtualBox is called the host; VirtualBox is technically the hypervisor; and any virtualized systems it runs on the host PC are called guests, and are your virtual machines (VM).

Head over to VirtualBox Images, where you can download and run pre-compiled VDI files (i.e. VirtualBox hard drive images, like the dynamic/fixed kind you created above) for some swap-and-run fun.

This tutorial provides a step-by-step screenshot guide on how to install Windows 11/10, in VirtualBox and take Windows OS for a test drive.

VirtualBox 3.2 beta is a free download for Windows, Mac, and Linux systems. If you already know of some neat and, shall we say, unofficial OS X work-arounds that make use of VirtualBox, tell us ...