NTFSWIPE(8) System Manager's Manual NTFSWIPE(8)
ntfswipe - overwrite unused space on an NTFS volume
ntfswipe [options] device
ntfswipe clears all or part of unused space on an NTFS volume by over-
writing with zeroes or random bytes.
Below is a summary of all the options that ntfswipe accepts. Nearly
all options have two equivalent names. The short name is preceded by -
and the long name is preceded by --. Any single letter options, that
don't take an argument, can be combined into a single command, e.g.
-fv is equivalent to -f -v. Long named options can be abbreviated to
any unique prefix of their name.
Wipe all unused space. This may take significant time. If the
option --unused-fast (or -U) is also present, the faster wiping
method is used.
-b, --bytes BYTE-LIST
Define the allowed replacement bytes which are drawn randomly to
overwrite the unused space. BYTE-LIST is a comma-separated list
of values in range 0-255 expressed in octal, decimal or hexadec-
-c, --count NUM
Define the number of times the unused space is to be overwrit-
Wipe all the directory indexes, which may contain names of
This will override some sensible defaults, such as not using a
mounted volume. Use this option with caution.
Show a list of options with a brief description of each one.
Display details about unused space, without wiping anything.
Overwrite the logfile (update journal).
Overwrite the unused space in the MFT (main file table, which
contains the file names, and the contents of short files).
Executes the wiping process without writing to device.
Overwrite the Windows swap space.
Suppress some debug/warning/error messages.
Overwrite the space which had been allocated to a file which has
been deleted recently and is still undeletable.
Overwrite the space at the end of files which is unused, but
allocated because the allocations are always done by full clus-
Overwrite the space which is currently not allocated to any file
(but may have been used in the past).
Overwrite the space which is currently not allocated to any
file, trying not to overwrite the space not written to since the
Display more debug/warning/error messages. This option may be
used twice to display even more messages.
Show the version number, copyright and license of ntfswipe.
Wipe out all unused space in an NTFS volume.
ntfswipe -a /dev/sda1
Wipe out all deleted file names from an NTFS volume.
ntfswipe -dms /dev/sda1
There are no known problems with ntfswipe. If you find a bug please
send an email describing the problem to the development team:
ntfswipe was written by Richard Russon, Anton Altaparmakov and Yura
Pakhuchiy. It was ported to ntfs-3g by Erik Larsson.
ntfswipe is part of the ntfs-3g package and is available from:
ntfs-3g(8), ntfsls(8), ntfsprogs(8)
ntfs-3g 2015.3.14AR.1 June 2014 NTFSWIPE(8)
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