16. The hard drive that had multiple partitions was merged into one partition.

Even after changing the partition information, data restoration is possible with Data Whitehole. However, the actual shape of the partition has changed much from the old format of partition; it is required to find the previous partition before start the restoration.

To find previous partition, use Data Whitehole's "Find Format" feature. After finding the previous partition using the "Find Format" feature, search that partition to find the deleted data.