It's time to start using a REAL Operating System, Challenger is the perfect choice for hard disk diagnostics and data recovery. Challenger OS is also excellent as a desktop for entertainment and work.
Burning ChallengerOS iso to a DVD ChallengerOS iso file can be burned into a blank DVD using integrated burning utility of your computer. Make sure burning the iso, not copy the iso into a DVD. After burning, DVD label should be "CHALLENGER" and you should see into DVD the following folders:
Download Rufus from site https://rufus.ie/
Etcher is a great and easy to use iso burning tool. Etcher works in Windows,OS and Linux. Download Etcher https://www.balena.io/etcher/
Burning Challenger into a USB Stick can be performed also from ChallengerOS itself.
If you booted your computer with challengerOS ( from a DVD as example ) just select Challenger Installer from Menu or Desktop Icon
Once USB Bootable Drive is created, you need to boot your computer using ChallengerOS.