Perhaps they referenced this guide to create a bootable Live USB on Windows, allowing them to test drive something like Ubuntu without making any changes to their PC.

Conclusion Creating a bootable USB drive on Linux is an uncomplicated task with the right tool at your disposal. The tools listed above cater to a broad range of user expertise levels, making the ...

Trying to get started with VMware's virtualization app but lack an optical drive on your Apple computer? Here's how to transform the ISO into a bootable flash drive for installing the hypervisor.

1) Make sure your PC can boot from a flash drive. You can do this in the hardware settings (also called the CMOS or BIOS settings), but I can’t tell you exactly how.

Now I have a bootable USB drive which can both install ML and run diagnostics. That’s exactly what I like to do with my USB installers.