FROM THE ERROR IT SELF IT IS A HARD DISK PROBLEM. THERE IS A POSSIBILTY THAT YOUR HARD DISK CRASHED, DID YOU DROP YOUR LAPTOP?
REMOVE THE HARDDISK FROM YOUR LAPTOP AND CONNECT TO A USB HARD DISK CONNECTOR AND TRY TO BACKUP YOUR DATA.FROM THIS YOU CAN CHECK IF YOUR HARDDISK IS STILL WORKING.

GOODLUCK!!!!

The hardest challenge is to be yourself in a world where everyone is trying to make you be somebody else.