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2. Data recovery - Wikipedia

   en.wikipedia.org/wiki/Data_recovery

   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.

3. TestDisk - Wikipedia

   en.wikipedia.org/wiki/TestDisk

   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.

4. Recuva - Wikipedia

   en.wikipedia.org/wiki/Recuva

   Recuva can recover files deleted from internal and external hard disk drives, USB flash drives, memory cards, portable media players or all random-access storage mediums with a supported file system. The program works on FAT , exFAT and NTFS file systems of Windows, [ 4 ] and as of version 1.5.3 it can also recover files from Ext2 , Ext3 and ...

5. PhotoRec - Wikipedia

   en.wikipedia.org/wiki/PhotoRec

   PhotoRec is a free and open-source utility software for data recovery with text-based user interface using data carving techniques, designed to recover lost files from various digital camera memory, hard disk and CD-ROM. It can recover the files with more than 480 file extensions (about 300 file families).

6. Disk Drill - Wikipedia

   en.wikipedia.org/wiki/Disk_Drill

   The core of Disk Drill is a Recovery Vault technology which allows to recover data from a medium that was secured by Recovery Vault beforehand. [5] [6] Recovery Vault runs as a background service and remembers all metadata and properties of the deleted data. Thus making it possible to restore deleted files with their original file names and ...

7. Data corruption - Wikipedia

   en.wikipedia.org/wiki/Data_corruption

   This "silent correction" can be monitored using S.M.A.R.T. and tools available for most operating systems to automatically check the disk drive for impending failures by watching for deteriorating SMART parameters. Some file systems, such as Btrfs, HAMMER, ReFS, and ZFS, use internal data and metadata checksumming to detect silent data corruption.