Eraser
Let me start by saying that most people do not need this utility. There are those of us who work on sensitive material and that material needs to be safe. The most important part is keeping the files on your computer is a safe place. Another important part of keeping your files safe is properly deleting them.
Most people figure that putting a file in the recycle bin and emptying it is enough – But it is not. Files can be recovered fairly easily if that is all that has been done. The proper way to delete a file is to overwrite the disk space where the file was with random junk – Enter Eraser!
Eraser is an unobtrusive utility that adds the ability to truly erase a file. You can right click and erase an individual file or erase the whole recycle bin. Eraser also runs scheduled tasks that allow it to securely erase all the “empty” space on your hard disk. At work this runs once a week on certain computers and ensures no sensitive data is left on the disk.
IT EVEN HAS A SECURE MOVE! This lets you move a file from one place on the disk to another. After the move is complete eraser will securely wipe the original file location.
Eraser can be downloaded at http://www.tolvanen.com/eraser/
The next important step is protecting the data on your disk from snooping eyes. More on that later….