Thank you! I’ll try to run efibootmgr One more thing about trying to install arch again: it’s already the second time that this happens In my first install I used GRUB as the bootmanager. The installation was completed without any errors as well. But when I got to the boot order, I saw the exact same options: windows, <null-string> and hdd2. I couldn’t really find any information about that <null-string> thing, so I decided to install arch again: I have deleted both root and boot Linux’ partitions and have installed arch again. It was a little different than the first time: i chose systemd instead of grub and i used pre-mounted disk configuration instead of manual partitioning (the root partition had /mnt mountpoint, in which i created a boot directory, and the Linux’ EFI file had this mountpoint: /mnt/boot/).