Windows writes unknown filesystem, what should I do?

Question

Windows

Hello.
Windows rebooted, showed a blue window, which says that insert a disk or contact the administrator and at the bottom there is an inscription UEFI
Then he rebooted himself again.
And writes unknown filesystem.
Entering rescue mode
After finding a couple of manuals and doing it, nothing happened.
Next to windows is Ubuntu, which also does not work.
Executed commands from
Grub rescue manual > ls
(hd0), (hd0, gpt10),...,(hd0,gpt1)
Set root=(hd0,gpt6)
Ls /
gave an error (unknow filesystem)
Then did
Set prefix=(hd0 , gpt6)/boot/grub
Insmod normal
and that's it, nothing else. Once again issued unknow filesystem

Answer 1

Boot from LiveCD/LiveUSB, look in smartctl -a /dev/sdX (where X is your drive letter), look in fdisk -l/parted -l, try to mount what you see. Although, it seems to me that after viewing smartctl, you will understand that Bobik is dead.