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TestDisk is a free and open-source data recovery utility that helps users recover lost partitions or repair corrupted filesystems. [1] TestDisk can collect detailed information about a corrupted drive, which can then be sent to a technician for further analysis.
The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive.
Hetman Partition Recovery is a shareware program for recovery of deleted data from hard drive partitions and other storage media. The utility supports both functioning disks and damaged logical partitions and recovers data from both reformatted disks and disks which have had their file system changed from FAT to NTFS or vice versa.
In computing, the term raw disk, [1] [2] often referred to as raw, is used to refer to hard disk access at a raw, binary level, beneath the file system level, and using partition data at the MBR. A notable example is in the context of platform virtualization , and a feature of certain virtualization software is the ability to access a hard disk ...
A disk editor is a computer program that allows its user to read, edit, and write raw data (at character or hexadecimal, byte-levels) on disk drives (e.g., hard disks, USB flash disks or removable media such as a floppy disks); as such, they are sometimes called sector editors, since the read/write routines built into the electronics of most ...
Recovering data without an undeletion facility is usually called data recovery, rather than undeletion. Undeletion can both help prevent users from accidentally losing data , or can pose a computer security risk, since users may not be aware that deleted files remain accessible.