Stuck on white boot screen

I was working win Parallels on my Mac and some minutes later I found all stucked :/

I powered off by holding button and when i tried to power back on it stucks on a white boot screen...

I tried all combinations.. safe mode, NVRAM reset, diagnostic and repair (even internet mode) -> nothing

Holding option to select boot disk it finds the right disk but when I enter it stucks

I tried the destination mode (holding T) and i Thunderbolt to another Mac and I saw that all the files are safe :/ even the Disk Utility said that the broken Mac disk is OK :/

I really have to move 800GB data and reset it or there is something that I have not tried yet?

thanks guys :)

As I said I known that I can restore it in many ways but I'm trying to fix it