Case:
Customers said that the computer is getting slower and slower, maybe the Windows XP operating system has been used for about two years.Until now, I haven’t re -installed the operating system. It is estimated that the system has been taking a long time and it has become very slow.After that, I bought a Windows 7 CD -ROM re -installation operating system at the computer city. Most of the hour heads were installed, and the system had not been installed. Is it because the hard disk has a bad session.Customers immediately use the CD -ROM Windows PE operating system to directly backup the important data in the D drive under the PE. It is found that the copy file is very slow. The copy speed is only hundreds of kb/s.Completed!
Solution:
The engineer of the Data Recovery Center, first based on the information provided by the customer, combined with the experience of the Center’s previous recovery of the D3200AAJS model, the preliminary diagnosis was caused by the firmware problem or the hard disk magnetic head.The engineer of the data recovery center used professional equipment PC3000 UDMA to detect hard disks, and found that the hard disk recognition was a bit slow.First enter the PC3000 UDMA WD special mode, back up all the firmware of the hard disk, and find that the Copy0 backup speed of the hard disk is very slow, and the Copy1 backup speed is normal.For safety reasons, back up all the firmware of the No. 1 magnetic head.Then test the magnet reading and writing of WD, and the result is that the magnetic head 0 is not good.Through the professional equipment PC3000 UDMA split head image, the mirror is finished data.Find the matching magnetic head in the accessories library, perform magnetic head replacement on the level 100 dust -free platform, and cooperate with the international professional magnetic head replacement tool for magnetic head replacement.The full mirror is complete. After the file sampling is detected normally, the data has been successfully recovered by 100%, and the customer accepts data satisfaction. So far, the data recovery is successful.