download this:
http://acelogix.fileburst.com/au.exe
install it, hit next until you get to the button that says done.
hit the button try once the app opens.
check the box "turn on expert mode".
hit next, finish, then cancel.
hit the protect button on the left.
select securly delete files.
select the files using the button on the right .
when done hit the delete button.