Software Implementations
- CCleaner and Recuva, utilities developed by Piriform
- Darik's Boot and Nuke (DBAN) (whole disk only)
- Disk Utility a program provided with Mac OS X (whole disk or free space only)
- FreeOTFE and FreeOTFE Explorer (disk encryption system)
- IObit File Shredder
- Lavasoft Privacy Toolbox
- PeaZip Secure delete function (files/directories only)
- Red Button
- shred program of the GNU Core Utilities
- SlimCleaner developed by SlimWare Utilities
- srm, also used by Mac OS X
- TrueCrypt (disk encryption system) (free space only)
- Ashampoo HDD Control 2
- Heidi Eraser Windows explorer integration for files and free space (Open source)
- TuneUp Utilities
- Shredit secure erase utility.
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