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Your deleted file still exists | The Curious Engineer

Key Facts In This Video

  1. When attempting to permanently delete a file, the computer marks the location of the file as empty, although the file still remains. 00:33

  2. Zero filling requires you to fill every bite of the original file with zero, then deleting the file. However, this method isn't a completely reliable. 01:19

  3. Bad sectors are areas on a hard drive which cannot be overridden because of failed transistors or physical damage. 02:02