Latest questions about "hard"

Fenrir itself shows that the firmware takes up 500 GB of hard disk space.

My SSD is broken and now I installed Software Informer and want use my InPaint. How to activate it on my new hard disk?

I can save missions as many times at the easiest difficulty levels, and 3 times per mission at the second most difficult. I would like to do the same with the hardest level, but can't.