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So, what is disk wiping and how it works? In order to permanently wipe a data from a disk all binary data, down to a basic 0's and 1's must be overwritten with a new data. The only real, and many times proven method of permanent data removal (without making a physical damage to a disk) is DISK WIPING technology. Formatting a disk drive does not actually overwrite the data, and although it is way better than deleting the file from within Windows it is still very easy to retrieve data back from a formatted disk. Ok, what about formatting? Unfortunately, formatting a disk drive can not help securing the permanent deletion either.