Accidental Damage: This involves operating system (OS) failure, in which lost files are copied to another disk. This is performed by mounting the system disk or the removable media. Files are then transferred from the system drive to the backup disks via a file manager or an optical disc authoring software. This type of data loss risk can often be mitigated by regularly copying or storing valuable data on different partitions.
Disk Failure: This involves failure of hard disk, disk partition, or a file system. Data, in such cases, can be retrieved by repairing file system, master boot record, or through hard disk recovery methods such as hard drive firmware, hardware replacements on a damaged disk, and software based corrupted data recovery. In case of recovering data from hard disks failure, engineers focus on one-time recovery or retrieving data that can be easily read.
File Deleted from Storage System: In this case, content of the deleted or lost file is not immediately removed from the drive and hence can be recovered in multiple fragments.
