[tbelldesignco]

So the only way for you to now Use a SPI flash programmer and burn your mother board bios with it. 
It also happens when you by force try to install the program. 
Any how. it is just alarming for all of us to stay away till any stable public copy releases.

Yes, I am going to reflash the bios and use CLI to wipe the drives and rebuild the machine. I think that is the only way my brother is getting his machine back.

I strongly agree @tbelldesignco  Looks as though Windows 11 is very much in test stage and far from completed.  It'd be like installing an experimental OS.  Under best of times a new OS can be challenging, but in this case loading the experimental Windows 11 would be like looking for trouble unless you're a savvy high-tech and experienced developer.

Yeah and even for those who are savvy and/or an experienced developer, I would not recommend running it on your daily driver. I think folks get really excited about the new features (I see it all the time with iOS and macOS beta cycles) and they either lose a good majority of functionality because it's unstable software, lose data trying to roll back or brick their devices entirely.