Solution :- 1.Connect faulty hard disk to other machine eg SATA0 is connected with old hard disk then faulty will be at SATA1/2/3. 2 Go to setup by pressing F2. 3. Drive- enable/ON SATA1 if connected to sata1 port. 4. Restart PC. 5. It will show u 4 hard disk or 2 hard disk depend upon ur configuration. 6. C/D drive will be your running hard disk and E/F will be your faulty hard disk. 7. Copy the required data. 8. Sometime it may recover the hard disk. So check functionality of the disk by connecting it to old PC.