I don't even know if this issue belong here but I have troubles defining properly the problem.
Origin of the issue: a friend of mine plugged my hard drive "WD My Passport 2TB" (filesystem NTFS) on his MAC to give me a file. All went well, except the fact that when I tried plugging it on my Windows computer, It throws this error at me "D:/ is not accessible. The disk structure is corrupted and unreadable.".
I tried some recovery tools for my files, but only found sharewares options until testdisk. But I don't really know what I am doing with it and I don't want to mess with my hard drive. I read every tutorials but didn't find one that matches my case.
Here are some screens I took to help you help me with that:





imgur link: http://imgur.com/a/SiPOI