I am attempting to use the File Recovery program to restore the SD card. I've reached the point where the files have apparently been at least identified. I read somewhere on your site (and now I cannot find it) that even if the files are recovered they still may not work (something about when Windows deletes something there is a code that stays with it?). I' m willing to spend the money but I obviously don't want to do so without a guarantee. Please explain what "free trial actually means?" What options do I have, please? When I click on "recover" (the green box), I can choose "free trial" but then it just goes away?