1.) The "free space" area is not a designated area/directory. Rather, it refers to any/all space on your hard drive that is not currently used to store data.

2.) 'Normal deletion' is the process of deleting the links, as done when you empty the Recycle Bin. The files, however, exist until overwritten, seconds to years in the future.

3.) 'Secure deletion' is the process of both deleting the links and overwriting the actual file(s).

WindowWasher uses a secure deletion process, preventing future recovery using specialized software. Much like shedding papers, recovery may still be possible, but it is highly unlikely. (Overwriting the file(s) 7 times, an option in WindowWasher, satisfies the US Department of Defense for destroying classified data.)

Hope this helps,