Where is all of my Data?

 So after booting up this morning I find that one of my WD 2TB Green Drives has possibly failed  and gives me this window containing (This volume does not contain a recognized file system. Please make sure that all the required file drivers are loaded and that the volume is not corrupted) when I try to access it. I have a little over 85% filled with Data. I just ran the WD Data Life Guard Diagonstic Tool and everything passed BUT where is my Data ?   Any help would be great.

Try using recuva to scan the hard drive and recover the data, just don’t save any new files because that might overwrite the files that you want to recover.

dont forget to use another drive for recovering the content… like previous user says