Now, when you delete a file on a drive, the system doesn't really erases the file (all the zeros and ones that concerning the file), but instead it removes only the reference to that file, which means that everyone can retrieve the deleted file by using a file recovery program, unless the data is overwritten. That means that any single file (text, document, photo, program, etc.) is nothing else than a row of 0's and 1's.
By wiping a drive (hard disk, USB, Memory card, etc.), you ensure that all it's stored data will be erased permanently and no one can retrieve the data from it, in any way.Īs you may already know, any piece of information that stored on a drive, is stored in the form of 0 and 1. This tutorial is written for users who want to completely wipe the hard drive on their PC (Desktop or laptop) before selling, donating or rejecting the computer or the drive.
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