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  2. Data corruption - Wikipedia

    en.wikipedia.org/wiki/Data_corruption

    The adjacent image is a corrupted image file in which most of the information has been lost. Some types of malware may intentionally corrupt files as part of their payloads , usually by overwriting them with inoperative or garbage code, while a non-malicious virus may also unintentionally corrupt files when it accesses them.

  3. Data recovery - Wikipedia

    en.wikipedia.org/wiki/Data_recovery

    Depending on the situation, solutions involve repairing the logical file system, partition table, or master boot record, or updating the firmware or drive recovery techniques ranging from software-based recovery of corrupted data, to hardware- and software-based recovery of damaged service areas (also known as the hard disk drive's "firmware ...

  4. Disk image - Wikipedia

    en.wikipedia.org/wiki/Disk_image

    A disk image is a snapshot of a storage device's structure and data typically stored in one or more computer files on another storage device. [1] [2]Traditionally, disk images were bit-by-bit copies of every sector on a hard disk often created for digital forensic purposes, but it is now common to only copy allocated data to reduce storage space.

  5. Data degradation - Wikipedia

    en.wikipedia.org/wiki/Data_degradation

    Most disk, disk controller and higher-level systems are subject to a slight chance of unrecoverable failure. With ever-growing disk capacities, file sizes, and increases in the amount of data stored on a disk, the likelihood of the occurrence of data decay and other forms of uncorrected and undetected data corruption increases.

  6. Bad sector - Wikipedia

    en.wikipedia.org/wiki/Bad_sector

    Hard disk reader. A bad sector in computing is a disk sector on a disk storage unit that is unreadable. Upon taking damage, all information stored on that sector is lost. When a bad sector is found and marked, the operating system like Windows or Linux will skip it in the future.

  7. Photo recovery - Wikipedia

    en.wikipedia.org/wiki/Photo_recovery

    Photo recovery is the process of salvaging digital photographs from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally. Photo recovery can be considered a subset of the overall data recovery field.

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