Look as explained by disco bay deleting files is simple. But if you truly never want the files to be recovered there is realy no way to do it permanently (exept with a hammer). Yes you can get programmes that claim to do it to the same standards as the american goverment blah blah blah, but even they cannot do it comletely.
Most programmes when deleting just overwrite the info with random ones and zeros, the u.s govt does it to the equivalent of six layers (last I heard) and new files just overwrite that.
But no delted info is 100% safe or unfindable to a determined person, even ebay recommend if you think their may be files or data you want kept private then dont sell your used hard drive.
Just trying to help was not being funny.
Try here http://www.brothersoft.com/downloads...n-program.html