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DigiSecret can erase files or folders from your disks beyond recovery. When you delete a file using the standard methods, it is usually moved to the Recycle Bin, which makes it possible to restore the file later on. Even if you empty the Recycle Bin, your files can still be recovered using a special utility; the operating system just marks it so that it can be overwritten in the future, but doesn't wipe the information contained in the file. DigiSecret deletes files and overwrites them with random data multiple times, using special patterns, to eliminate any possibility to recover them. You can choose how many times the file is overwritten (1 to 35 times). To permanently delete the files or folders, drag them to the program main window and click Actions => Shred ... or the Shred toolbar button. A dialog window will appear where you can select the preferred shredding scheme. Check the Delete empty folders checkbox to remove the empty folders along with the files. Check the Use these settings as default checkbox if you would like to use the selected shredding scheme as the default one in the future
The choice of the shredding scheme depends on the estimated resources and determination of the adversary that, you believe, may be trying to recover your files. If your opponent's only tool is a simple Undelete program, the Basic scheme is enough to make your files unrecoverable. If you are dealing with a powerful government agency that possesses the state-of-the-art technology to thoroughly examine your drives, even the Full scheme may be sometimes insufficient to provide 100 percent guarantee that all the information that you erased is gone forever, although the cost of data recovery would be prohibitively expensive.
You can also remove files permanently by right-clicking on them in Windows Explorer and selecting DigiSecret =>Shred ... .
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