The problem may be from accidentally deleting files, not saving or not saving a password access until the operating system is no longer bootable due to the corruption of system files, or the hard drive (worst case scenario).
For each of these problems, there are specialized tools that can help fix problems on a computer, or help us take care of and be prepared for the unexpected damage if something bad happens.
One of them is SystemRescue Cd addressed to system administrators.
SystemRescueCD is a powerful tool for repairing Linux systems and can run as a bootable CD-ROM or from a USB stick. A welcome message provides basic instructions for starting a network interface, programs run on a command line (text processors and a web browser) that allows NTFS support to read Windows formatted hard drives.
The system is now based on ArchLinux and was built using archiso and its dependencies. The core and user programs are now on 64-bit (the 32-bit platform is no longer supported). GUI based on xorg-1.20.3 and xfce-4.12. (package list)
The new version updated the kernel to Long-Term-Supported linux-5.10.79. As mentioned above, it uses a graphical user interface XFCE. The System Rescue CD is licensed under the GNU General License Public License Version 2.
System Rescue CD Standard