I have a Dell Insipiron 3125, which it battery died, so it had to be always plugged in. One day after finishing college I was packing my things and Shut Down the laptop, but since i was in a hurry while it was turning off I disconnected the power cord. When I arrived home the laptop wouldnt boot, I tried giving it a refresh but said media tool wasnt found, then I installed a usb with the media tool, but even after giving it a refresh and repair it still doesnt work properly, My Pc diagnostic says it was a HDD failure. Can someone help me?