Hi, am relatively new to this forum but I do need some help.
My father is something of an amateur photographer has built up a collection of literally thousands of digital photos on his PC. Not being a techno whizz-kid he has never seen fit to back them up. Upon accessing his PC the other day all his photos appear to have dissapeared into the ether

Now this is only his photos, and sounds a bit suspicious, but I do know that stuff isnt erased physicaly of the H/D its just treated as empty space, therefore I was wondering if anyone knew of any good file recovery software thats effective and not too difficult to use?
Mnay thanks in advance
Bluesteel