...not really deleted; it's just flagged so that the space it occupies can be reused. Until the file is overwritten, the data can be recovered using any of a number of available programs.
What you want to do is use a program that wipes, or renders unrecoverable, all the data contained on a disk drive's free space, defined as all space where nothing is written plus all space occupied by deleted files.
There are many programs that wipe free space; Google "disk wiping software" and you'll see what I mean. A good free program that does this is Eraser, available at http://www.heidi.ie/node/6.
1. Any of these programs take a substantial amount of time to run, especially if you want to wipe the drive to Department of Defense standards or better.
2. Read the instructions completely before you begin; that way, you won't inadvertently erase your entire hard drive...;-)
Hope this helps,
So i need to find already deleted files and then completely delete them. how do i do this?