Why is my 6TB harddrive showing as two unallocated partitions?

Question:

This is a new 6TB “WD Black” Western Digital drive.

I can’t remove either section. I can’t create a larger-than 2048GB partition.

A Windows 7 MBR was accidentially written to this drive, but has since been removed. Aside from that, it has never been used or partitioned.

How can I make one big 6TB partition? Why does it have this arbitrary internal division?

Answer: In order for an operating system to fully support storage devices that have capacities that exceed 2 terabytes (2 TB, or 2 trillion bytes), the device must be initialized by using the GUID partition table (GPT) partitioning scheme. This scheme supports addressing of the full range of storage capacity. If the user intends to start the computer from one of these large disks, the system s base firmware interface must use the Unified Extensible Firmware Interface (UEFI) and not BIOS.

From: https://support.microsoft.com/en-us/help/2581408/windows-support-for-hard-disks-that-are-larger-than-2-tb

You’ll need to reinitialize the drive with a GPT instead of an MBR.

In order to do that, right click on the grey box that says Disk 1 and select “Convert to GPT Disk”. ?Please note that by doing this you are erasing the partition table and by extension you are making any data on the drive difficult to recover (ie, logically erasing it).