I'm running a Dell Inspiron 5558, originally a Windows 8, upgraded to Windows 10. While in use, the machine randomly crashed giving a message similar to "No boot device found". On restart, the machine gives an error "PXE-E61: Media test failure, check cable" and "PXE-M0F: Exiting PXE ROM. No boot device found. Press any key to reboot the machine". By booting to a Ubuntu live usb, I was able to mount the drive, albeit only as a read-only. It had originally thrown an exit error 14 and suggested the read-only. I've been looking into different solutions, but I'm currently lost as to where to go next.
Additionally, I already backed up the partition with clonezilla, but I was wondering if it would be better to clone the whole drive.
Thanks in advance.