Data loss due to misoperation during system installation

Case:
After the reinstallation system is over, I found that the data in the hard disk was gone, and the partitions have changed. It turned out to be 4 districts. Now it is 3 districts. There are some personal data that is more important to recover the data.Customers immediately found the data recovery center on the Internet.After call in time, send it to the data recovery center.

Solution:
The detection of engineers is misunderstanding of data loss.In order to ensure the safety of the source disk, no operation is done to the source disk.So the engineer used a professional PC3000-UDMA to mirrize the hard disk, and then used professional data to recover software to analyze the mirror files, and the final data recovered successfully.