Please help me

had this problem with my very old pc 2 years ago as far as i remember the problem is in your main hdd

is the power outlet on?

it's probably your hd drive then bro.

your main hard disk drive have problem i think your hdd is damaged

i had the same prob with my pc 2 years ago and the computer repair guys told that its hdd is damaged and he changed the hdd and it start working

replacing it don't come cheap.
i'm not a hardware person though :L

Just take your pc to pc repair shop and he will check and will tell you the exact problem and hdd can repaired without being replaced so go to shop now