Case:
Customers have taken it to say that there are four partitions, of which the D drive is also the second partition that cannot be opened.
Solution:
I thought it was damaged by DBR, but it was different when I received it. The reaction speed of the hard disk computer was very slow. Finally, I opened this partition prompt formatting.Then I looked at the FAT1 problem. The position of FAT1 was a DBR, and then I looked at FAT2 or a DBR. So I can use R-STUDIO to double-click the partition. It is easy to see the structure.Use Winhex to manually reconstruct the first sector of the damaged FAT. The FAT table was successfully reconstructed, and the partition was opened smoothly. Then I copied it with a copy method and the data recovered successfully.