Delete Files - Version 11.04.01 To secure classified data from getting misused, it isbest to delete them completely after their requiredusage. However, deletion the of file is not sufficient,especially with the advent of powerful data recoverytools that are capable of searching data deleted evenlong back. Therefore, to delete files in a permanentmanner what is required in more reliable and accurate.Complete file deletion as seen from the OS only emptiesthe table entry in the file system, but bits of dataremains written in the hard drive. Only when the harddisk space is overwritten by some other data is theprevious data eliminated. So, the basic principlebehind the permanent file deletion is to overwrite themwith any random data. Software like Kernel FileShredder is built on this very concept to delete filesand folders beyond the point of recovery. Thisapplication makes several passes of random orsequential bits of 0s and 1s t overwrite the data to bedeleted from the system’s hard drive. Crypto algorithmslike Depending on the sensitive nature of data,algorithms such as US Army AR380-19 (3 passes), PeterGutmann (35 Passes), DoD 5220 + Peter Gutmann, andGerman VSITR (7 Passes) are used for this purpose.Kernel File Shredder removes every trace of data fromthe drive which is otherwise impossible to achieve evenwith disk formatting. This way, this tool can deletefiles and free disk space. For more informationwww.deletefile.org