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More info is available at http://www.vbox.me/ - the site is not updated for a long time, the information on it can be outdated.
- Updated the VirtualBox to the latest version (6.1)
- Old versions of the included applications are replace with new ones.
- Fixed language pack
- Updated license to CC BY-NC-SA 4.0
Please see here for information on how to build from the source: BUILDING.