I ran diskmgmt.msc, but when Right-Clicking on those partitions, the options are not available to delete. If I Right-Click on the 'Basic Data Partition', those options are available. Then I tried FDisk, but it's not in my Windows 10 OS. I used it a lot in Windows 7. Bear in mind, this is re-purposed as an External 1 TB HardDrive.