I assume you've tried reaching "Andy" for help - I have no knowledge of his OS, but at one time ran Linux.
If "Andy" doesn't offer any help, using a different computer, you can build a bootable USB stick either running a more popular Linux OS or a Microsoft Windows OS. You'll need to read up on exactly how this is done, but it should be straight forward.
I run two PC's, one to experiment with like installing questionable software and if it goes South format the drive; no harm no foul. My other PC is for work and stays as pristine as possible.
GL/73