How to make a bootable USB drive 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.

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.

By following these steps, you can easily create a bootable Ubuntu USB from a Windows system, enabling you to test Ubuntu or use it for troubleshooting and data recovery.

Boot into Puppy Linux: The system will now boot from the USB drive. You may be prompted to create a persistent file for saving session data on shutdown. Tips and Considerations ...

To Dual Boot, say Windows and Ubuntu, on separate Hard Drives, you must first meet the prerequisite and then follow the steps mentioned here.