Recover data after hard drive repartition

Case:
The customer’s hard disk was originally 4 partitions. It suddenly had a black screen during use. It could not be restarted into the system. When reinstalled the system, the hard disk was found to have no partition state. Because the operator did not know that the hard disk data was important, the system was installed after the hard disk was re -partitioned.Data important needs to recover

Solution:
After manual positioning of the engineer, the rewriting partition information recovery data is successful