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Get Rid Of Old Computer Data

Mechanical hard drives

These are the old-school alternatives to SSDs, which happen to have a spinning platter. Normally, files that you delete from these types of drives are still recoverable. What happens is that, when you delete a file from this kind of drive, the drive will simply mark the file as deleted. However, until it is overwritten in future, experts can easily scan the drive and recover that data, which had been marked as deleted before.

Solid state drives

Internal SSDs happen to use a feature known as TRIM. Due to this, whenever you delete a file from an SSD, the drive receives a notice from the operating system, which indicates that the file was deleted. This guides the drive to deleting only the file’s data from the memory cells. Though doing this generally speeds things up, as it is faster to write to empty cells; the process does not erase everything from the drive, making it easily recoverable.

External SSDs and other media

Contrary to the case of internal SSDs, whenever you delete files from an external SSD or any other storage removable media, TRIM is not responsible for erasing the files. This means that the deleted files are recoverable from the external SSDs. Moreover, USB flash drives, SD cards or any other removable media source, just like the external SSD, are not safe until thorough formatting takes place.