WD Green 2TB MyBook Essential Moved to Internal

@liam85, initialisation is data destructive, but it only rewrites sector 0. If that was all that you had done, then a repair would have been relatively easy. Unfortunately you have massively compounded the problem by formatting your drive.

I would suggest R-Studio. That appears to be the tool that is most often recommended by data recovery professionals.

http://www.data-recovery-software.net/