Do LONG SEARCH and also let it look in Deleted Files, it WILL work and unlike some other Apps you get the Full File Name and Location saved to a folder so its easy to put back where it was.
Many App's are simply to recover a file you made a boob of and deleted, this software is for recovering from a totalled HDD (not Physically damaged), that inc's Windows nuked or File System gone inc a HDD appearing as RAW (mines after Mobo Fried).