When you delete a file on a hard drive using Windows you’re actually deleting a “pointer” to the file: a sort of bookmark that the system uses to find and retrieve your data. The specifics of what happens when you delete a file depend on your operating system and the type of hard drive you’re using. This is because when you think you’re deleting a file, it usually stays on your computer until it’s overwritten. While some of those scenes are obviously poking fun at the ridiculousness of TV technology, recovering deleted files isn’t relegated to the realm of fiction.ĭeleted files can be simple to recover if you know what you’re doing. You can’t create pixels out of thin air to magically enhance a low-resolution image, and getting your buddy to join in on the same keyboard probably won’t help you stop a hacker in their tracks. You might think those scenes are fake TV tech magic - and it’s true that they’re responsible for popularizing a lot of forensic myths. You’ve probably seen it on crime dramas like CSI or NCIS: the investigators get their hands on the bad guy’s computer, and with a few strokes of the keyboard, they are able to reconstruct everything that the criminal thought he had deleted. Learn moreĬan a file really be deleted forever? What exactly happens when you “delete” a file, and how easy is it to retrieve it?
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