I hope this can be fixed and my data is still recoverable though or I'll be really sad.... I have over 2tb of data filled on the harddrive and I don't know what made it like this. So what happened was that when that happened, I was randomly accessing my harddrive again yesterday and I noticed that it suddenly became inaccessible and my files started not showing. I was seriously hoping that my files weren't corrupted or anything and are recoverable. So what I did is that when I restarted my computer the harddrive shows up in my computer but doesn't show data, when I try to access it it asks me "You need to reformat the drive in I: before you can use it" then I also get the message "Volume does not contain a recognized file system". When I go to right click properties under system, it doesn't write or show anything, it's just blank in my computer.
I've recently bought and started using all kinds of Data Recovery Softwares such as: GetDataBack, Find and Mount, Stellar Phoenix Data Recovery, IsoBuster, and Recover my Files. They were no use and doesn't detect any of my files! After that I'm panicking and have the most miserable feeling in my life right now, just feel so depressed and desperate

But I've stumbled upon this place after doing some research about "RAW" data corruption on external harddrives no google, and hopefully I can get things fixed with "TestDisk". I've also went to this article here: http://html5.litten.com/how-to-fix-exte ... ecame-raw/ and showed me what do with the steps on how to fix an external hard disk drive becoming raw.
I really want my data back and I just want to know if it's really possible.
Everything on Western Digital Data Lifeguard and Computer management shows that my harddrive is healthy and have no problems. I haven't written anything to the drive as the article tells me to do so, and I did not format my drive yet 'cause I know that would be already bad. If anyone can help me here I'd greatly appreciate it. If there's anything i can do in return I'll donate to anyone who'll help me here, this thing is like my life

I heard that the solution to this would be to write a write a new partition table once I see my files/folders. Is this true? It's currently scanning right now and here are some pictures of what I have so far:

