One of the many misconceptions about file deletion is the fact that files can be recovered even if they are deleted on the computer system by the user. Deleting files normally moves them to the recycle bin from where they can be recovered easily. But even deleting them in there or pressing the Shift key [...]
Securely Delete Files
Only the pointer to the file is deleted when you opt to delete a file in windows. The whole file still exists on your harddisk and its possible to recover it using the right tools. You probably have some files where you want to make sure that the file is deleted and not recoverable at all.

