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#11
3tb is Unallocated meaning it has no partitions now. If deleted then you should first try from boot Partition Wizard CD running exactly as shown here the Partition Wizard Partition Recovery Wizard - Video Help.
It cannot recover the missing partitions then test the hard drive with the maker's HD Diagnostic extended CD scan.
You can also attempt to recover your data using Test Disk or free Recuva - Features
The first two hard drives have EFI OS installations. Are you still using both?
The third hard drive has an Active partition that needs to be Modify>Set Inactive by Partition Wizard because only an MBR OS boot partition should be Active.