You need to install a Linux system, or boot and run a Linux system from CD. Google for such free CD Images file.
In worst case, the hard drive is dead. This happened to me once. I have to send it back for warranty for a replacement.
Hi thanks a lot for your reply.
Unfortunately, 1st option didn't work. So I need too try the 2nd option.
I will really appreciate if you can help me with a guideline to perform the recovery. I'm not quite familiar with Linux.
Also Would I recover my NAS as it was at the beginning?