If delete a file, it isn't really gone because Windows just marks the space they occupied as being available. And anyone with a program such as Restoration could probably recover them, meaning that personal data could get into the wrong hands. The author of Sure Delete says that this free program deletes the file, then wipes and removes the data left over. The author has stopped updating or supporting the program, but it appeared to work fine in my informal tests. I was unable to recover several test files that I deleted with it. The program has three deletion methods: a quick wipe (which overwrites the file 4 times, a Department of Defense method (which overwrites the file 7 times with random data), and a Super Secure mode which overwrites it an impressive 24 times.
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