Ok just got a new hdd installed it and put windows 8 on it works fine. Then i shutdown and it done it normally before i heard a little click sound right before it shuts entirely off. This was happening with the old drive once i installed windows 8 on it. But before hand with any other OS it was fine maybe a very small click but nothing as obvious as this. Is this anything to be concerned about?

Edit: its not super loud or making any sort of scratching sound. More like a little click/pop then its off.