DriveScrubber permanently and securely wipes away data from drives, to prevent confidential information from falling into the wrong hands when selling or donating a computer. In addition to thoroughly erasing all drive contents, DriveScrubber can now also wipe only the free space of a drive, to delete the remnants of deleted files. With this process, existing files, programs, and the operating system are all left in intact, but any deleted files are unrecoverable. In addition to preparing a computer for sale or donation, this feature allows DriveScrubber to be used for regular security maintenance.

Many people believe that when they delete a file, it is permanently erased. It is not. In actuality, the data within the file still remains on the drive, and evidence that the file existed still remains on the drive. This is because of how an operating system saves and deletes files. When a file is deleted, its reference is removed from the file allocation table, but the data that...