Secure Delete by Defragment

Discussion in 'Windows Desktop Systems' started by WiredBrain, Feb 22, 2003.

  1. WiredBrain

    WiredBrain Guest

    I know that deleted files can be retrieved using software but I heard that by defragmenting our drive, they cannot be restored. Is this true?
  2. Perris Calderon

    Perris Calderon Moderator Staff Member Political User

    new york
    sometimes they could sometimes they couldn't

    no, your files are not neccessarily secure by virtue of defrag
  3. Enyo

    Enyo Moderator

    WiredBrain as dealer says a defrag will not provide a way of securely deleting files.

    Even commercial wiping software is not 100% guareteed to remove the data as MIT tests have showen it can still be recovered even after heavy software wiping and even degaussing.

    The NSA did a test, they wiped at DoD standard multiple times, then sat a magnet on it for a couple of days, degaussed it, took it apart and smashed it with a hammer, they were still able to recover 80% of the original data!

    However with wiping up to Guttmann 32 pass standards its very hard to recover any data without the use of a very expencive and time consuming process by which they read the data of the platters with special equiptment, i think they do analysis of the indentations left on the platter or something.

    If you want to take advantage of secure wipe software i suggest you check out this page:

    My personel recommedation would be BCWipe.

    You may find this guys method interesting:

    Anyway, simply no defrag does not remove deleted data! And as you can see commerical software is not the end of the story :)