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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. Windows File Recovery - Wikipedia

   en.wikipedia.org/wiki/Windows_File_Recovery

   Windows File Recovery can recover files from a local hard disk drive (HDD), USB flash drive, or memory card such as an SD card. [4] [5] It can work to some extent with solid-state drives (SSD). [6] The program is run using the winfr command. [4]

4. 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.

5. USB flash drive security - Wikipedia

   en.wikipedia.org/wiki/USB_flash_drive_security

   Usage: tracking corporate data stored on personal flash drives is a significant challenge; the drives are small, common and constantly moving. While many enterprises have strict management policies toward USB drives and some companies ban them outright to minimize risk, others seem unaware of the risks these devices pose to system security.

6. Data degradation - Wikipedia

   en.wikipedia.org/wiki/Data_degradation

   EPROMs, flash memory and other solid-state drive store data using electrical charges, which can slowly leak away due to imperfect insulation. Modern flash controller chips account for this leak by trying several lower threshold voltages (until ECC passes), prolonging the age of data.

7. Data corruption - Wikipedia

   en.wikipedia.org/wiki/Data_corruption

   Photo data corruption; in this case, a result of a failed data recovery from a hard disk drive Data corruption refers to errors in computer data that occur during writing, reading, storage, transmission, or processing, which introduce unintended changes to the original data.