Why doesnt a hard disk

[karishma_mantri]

Hello,
my friends hard disk just suddenly stopped detecting, what do I do? Changed the date cable too, still its not, but the Hd is getting plugged on, but not being detected on system.please suggest me anyway I could repair it

 

[almartin]

Is it being detected in the bios? If it is boot with your windows disk and go to the command prompt a run CHKDSK to fix any bad sectors. This might help you.