That’s how file recovery programs like Recuva operate. They scan the hard drive for those deleted files and have a good chance of recovering them. The chance is better for newly deleted files because the chance is lower that their sectors on the hard drive have been overwritten by other files.

You will hopefully agree with us that it is highly impracticable to wait until the file has been overwritten by other files to make sure that it cannot be recovered by normal means.

One solution is to use so called File Wipers and DP Secure Wiper by Dirk Paehl is one of them. It provides three different methods of deleting a file permanently so that it cannot be recovered anymore.

Single Overwrite: This is the fastest way of deleting a file. File Recovery Programs that are freely available on the Internet will not be able to recover the file anymore.
lDoD Wipe: Department of Defense compliant wiping. The file will be overwritten seven times.
Gutmann’s Method: It will overwrite the file with 35 different patterns.

DP Secure Wiper works by dragging and dropping files or folders into the program window. The one thing that is missing in our opinion is a context menu entry that sends files directly to the application.

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