Portable-VirtualBox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation.
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Latest commit cc27b1f Jul 29, 2016 @runarbu runarbu Upgraded to version 5.0.26

README.md

Portable-VirtualBox

Portable-VirtualBox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation.

More info is available at http://www.vbox.me/

Building

Please see here for information on how to build from source: BUILDING.