Case:
After the customer describes only one 40G C drive after the computer reinstalls the system, the other disk is lost, the original C drive is 100G, and the important data is placed in a small partition in the back.Later, I did not write a lot of data.
Solution:
The engineer analyzed the original file storage structure of the hard disk through the bottom layer of the disk. It was found that there were three partitions. The latter two data partition structures were intact. Through artificially constructing partition information, all data recovered.