Western Digital — there are some some problem in my hard disk. it is not shown in my pc or any other machines.

Address:

A/333 Pandit Din Dayal Upadhyay Nagar, Sukhliya,Vijay nagar

Whenever i connect my hard disk with my laptop it does not show any icon or any think but the internel light in the disk is on when connecting so i thought may its my laptop problem then i connect it to my friend's laptop and then again same problem occurs.