I have no idea how his previous installs went wrong.
I do know that some machines have weird partitioning, and using the menu install of (eg) Fedora isn't easy in that situation. Since many machines have weird recovery partitions I'm gently surprised at Fedora for that oversight.
But, also, when I started using computers it was hard. I had to learn (I had to read it in a book) what "Ctrl C" meant. I was learning what a VDU was; the difference between RAM and discs; what High Density meant with discs. I had to learn about bat files and ANSI control codes and a bunch of stuff. And if I didn't learn I couldn't just give up and go back to the other OS that was working, because there wasn't one.
People spend years gaining knowledge about an OS and they tinker it to get it just right. It's going to take more than a week to get this new OS install perfect. (Having said that, it shouldn't take a week to get it installed.)