I need help with a WD 3TB external HD that I bought less than a year ago. It had been working fine up until I moved for college. Then when I tried to plug it in, the computer would not recognize it. I went into disk management and found that the HD had no assigned drive letter, was unknown, and the bar to the right showing disk capacity was completely grayed out, detected capacity was zero. Trying to initialize it gave only device not ready errors, and after trying a couple free data recovery tools, I get mixed results. With some, they don't detect it either, with others, they detect it, can see that it contains data, but are unable to extract it. It makes no whirring or clicking noises, and seems completely fine mechanically. At this point I'm pretty sure its going to cost money no matter what I do, so I'm wondering if I should go with paid data recovery programs or just take it to the professionals.