Destroy is a data removal system that completely removes ALL data from
each hard disk in your computer. Destroy does this by overwriting the
entire hard disk with immaterial data thus removing ALL information on
your hard disk.
Data stored on a hard disk cannot be deleted as such, and
there is no mechanism available to undo the process of writing data to
the disk. The only method of deleting data is to overwrite the data with
new data. Destroy overwrites each piece of data 7 times, and 3 times for
A commonly held misconception is that deleting a file actually removes
the file from the hard disk. This is incorrect as the only way to remove
a file is to overwrite the file with worthless data and the delete process
does not do this. The delete process simply marks the file as being deleted,
informing the operating system that the file can be overwritten whenever
new files are added to the hard disk.