Thanks to open-source gem UNetbootin, you can quickly and easily transform a flash drive into the ultimate rescue tool.

This tutorial will walk you through creating a bootable Linux flash drive from Windows, macOS and Linux systems.rn ...

Step two: Create a bootable CD/DVD or USB flash drive. Step three: Boot that media on the destination system, then make a few decisions regarding the installation.

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.

A 2GB flash drive will be even better — and make sure there’s nothing important you want to save on the drive. This procedure will reformat the drive and erase its contents.

If you're trying to install a new operating system or flash your BIOS, you're going to need a bootable USB drive - here's how to make one.