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There are many software tools for the retrieval of deleted files. Those tools, often referred to as "file recovery" software, are taking advantage of shortcoming in the "delete" command that we all use regularly to delete files. Actually, the "delete" operation only removes bits of information from files, so they appear deleted in OScan't be found by the operating system. It can be easy to retrieve those files using aforementioned specialized file recovery software. In order to remove , or shred files permanently from your system, you have to use a program that is capable of rewriting the files overwriting the file(s) with random series of binary data multiple times. This process is often called shredding. Using this method, the actual data in the file will be overwritten. 

What should be shredded?

Any information that you need to be completely deleted beyond recovery should be shredded. Before shredding a file, please ensure that you are not violating any State Records Laws or Sunshine Laws. For more information, please see the Records Management Overview.

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