When you delete sensitive files from a disk on your computer, the operating system does not erase contents of these files from the disk - it only deletes 'references' to these files from filesystem tables. Contents of the deleted file (or file's body) remain on the disk and can be easily recovered using any disk tool utility.
Wiping is a term used to describe a process of shredding contents of a file or disk space. It is impossible to restore any data that has been properly wiped.
BCWipe Total WipeOut utility is designed for quite specific purposes, mainly for government agencies, banking and large corporations, where there is a need in safe destroying contents of hard drives before computers can be got away from the companies. BCWipe Total WipeOut is a powerful utility designed as a command-line program to minimize size of executable, avoid special installation procedures, hence, to provide a fast way for wiping disks on large number of computers without wasting time on installation the program on every computer separately.
Wiping a whole hard drive (or all hard drives) on the computer with BCWipe Total WipeOut is a simple procedure. You boot computer using BCWipe Total WipeOut bootable disk (CD or USB) and after confirming the operation will get the wiping process running. It is also possible to run BCWipe Total WipeOut with command-line parameters.
BCWipe Total WipeOut distributive includes ISO image used to burn the BCWipe Total WipeOut bootable CD disk. Since version 2.20 BCWipe Total WipeOut can create bootable USB disk as well. Before burning the ISO image to CD disk or creating bootable USB disk you can configure functionality of BCWipe Total WipeOut according to your requirements with the help of BCWipe Total WipeOut Configuration Wizard program.
BCWipe Total WipeOut is a powerful utility, which allows using US DoD 5220.22-M standard and Peter Gutmann wiping scheme (read about Peter Gutmann wiping scheme in the Secure Deletion of Data from Magnetic and Solid State Memory article ). As well you can use your own customized wiping scheme to shred sensitive information from hard drives installed on computer.