What To Do When Your Hard Disk Fries

A hard disk drive (HDD, or also hard drive) is a fixed data storage device that stores data on a magnetic surface layered onto hard disk platters.
A hard disk uses rigid rotating platters (disks). Each platter has a planar magnetic surface on which digital data may be stored. Information is written to the disk by transmitting an electromagnetic flux through an antenna or read-write head that is very close to a magnetic material, which in turn changes its polarization due to the flux.
The information can be read by a read-write head which senses electrical change as the magnetic fields pass by in close proximity as the platter rotates.
Disk failure occurs when a hard disk drive no longer operates and the information on it can no longer be accessed by the c View the rest of this article