I am a longtime Windows user, recently switched to Mac. I replaced folder with another folder (they had the same name) thinking that OS X will merge the contents of both folders. But OS X deleted the original folder and replaced it with the new one. Windows merges both the folders (I do this often in Windows). I have now lost hundreds of files. I haven't enabled Time Machine. I've tried using Finder's Undo, but that doesn't work.
Currently, I am trying to recover my data using photorec. It shows estimated time as 7 hours, 31 minutes. Does anyone know any free data recovery software that's faster and more powerful?