Hard disk data recovery is two type one is Physical and other is Logical. This article is represent on Physical and Logical Hard Disk Data Recovery. Physical case is the essential situation to get back the data recovery. Currently I.T industry developed many tools for physical recovery like as hard disk head changer and platter changing machine physical bad sector removal hardware tools etc. Logical cases are very clear it is possible to individual go here issue. virus corrupted as well as glowing blue display. operating system reboot and so on is usually Logical cases.