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Zilla Free DataNuker
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Version
3.2.0.1
Zilla Data Nuker literally destroys files, free space
and your Recycle Bin contents instead of only deleting
them. That means your data contents once overwritten
and destroyed It can't be recovered. The user
therefore should be sure of the files, folders .etc.
he/she wants to shred.There are many safeguards built
into the Zilla Data Nuker program to warn the
user.Windows allocates clusters for new files (and
extending existing files) from one end of the disk and
moving towards the other end. Accordingly, the user
for example if deleting files near the end of the
disk, it might be very long before those clusters get
used again.Therefore, shredding a disk's free space
ensures that any deleted data stored in unallocated
clusters will be completely shredded, and all the bits
and pieces of left over data from deleted files will
be destroyed.Generally speaking Windows stores files
using two steps:A directory entry and A series of one
or more clusters on a disk.When the user deletes a
file using windows the file's data doesn't actually
get deleted from disk. Windows simply marks the file's
clusters as available for reuse, then marks that
file's directory entry as deleted (from the
directories available) by replacing the first
character of the file's name with a special character.
Now if those clusters don't get reused for another
file, they are vulnerable and can be retrieved by
those who know where and how to look for it.Adding one
byte to the directory that was deleted will allow the
retrieve of the entire file that has been deleted.
This is used in most of the "Unerase" utilities
functions. Zilla Data Nuker makes it virtually
impossible to retrieve data from a file because it
literally overwrites the file's data clusters before
deleting the file. A "quick" shred overwrites the file
once, filling its data clusters with zeroes.
A "Thorough" shred overwrites the file maximum 10
times, using varying bit patterns each time
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