Hi Pasqetti, This is Ramesh.
The problem doesn't sound related to EFI or boot files. Also, the "bootrec /fixboot" command and the "c:\boot" directory don't apply to GPT-based disks.
Please disconnect all extra peripherals and external hard drives and try again. Also, check if the hard disk cable is well secured.
Open the UEFI settings and set your primary disk as the first in the boot order.
If nothing helps, run CrystalDiskInfo to see if the hard drive is healthy.
https://crystalmark.info/en/software/crystaldis...
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