lol, that is very wrong, in a 20 minute or less check of your hard drive with the proper equpiment, they can find every single file you've ever downloaded or installed, so deleting it won't help, unless you have a large/expensive wahser that deletes them and re-encypts them, they can always find them with the proper equipment, it's pointless... just tell them to commence to sucking your nuts and go about your day