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Field Nurse
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After selecting the disk, folder, or file you want to securely delete with DP Shredder, you can select the method and number of times the method will be applied. You can use a basic overwrite with all zeros, pseudo-random blocks of data, or opt to use more robust methods. DP Shredder can wipe with the power of US DoD 5220.22.M ECE 7X—which, if you must know, deletes the files, overwrite all locations with a character, its complement, then a random character followed by an overwrite, and it's repeated seven times. At the end of a single round, every bit of data you've deleted has been over-written 49 times.
If you need more assurance that your data is gone, it's time to break out the drill and find a far-away landfill or e-cycling center. If you're using a Mac and want to do some similarly secure disk wiping, check out the previously reviewed Permanent Eraser. DP Shredder is freeware, Windows only.
DP Shredder [The Portable Freeware Collection]
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