Lost Partition Recovery - is a method of recovering your lost or deleted partitions.

Download OtraUnit Data Recovery at the only official website OtraUnit Data Recovery Download Center.Then install and run it, you may see the following interface:
Click "Partition Recovery" button on the top bar.a dialog box will appear and the steps are as follows:
1. Select the disk you would like to scan for lost partitions.
2. Set the scanning method: Full Disk or Specified Range
3. Set the scanning method: quick scan or full scan
a. If selected Full Disk, OtraUnit Data Recovery will scan the entire disk.
b. If selected Specified Range, you can enter the range you want OtraUnit Data Recovery to scan. For advanced users.
4. After scanning, select the partitions you would like to recover from the list. Here, you should not only select the lost partitions but also the complete present partitions, then click the button Finish. OtraUnit Data Recovery will rebuild a partition table for the chosen partitions.
b. Select the free space where you would like to copy the partition.
c. Click "Finish" button.