Setting up a second SSD, but I'm having trouble utilizing the entire drive?

So I installed my second SSD today, and after successfully installing it and setting it up with my PC, my PC recognizes the SSD. However, the SSD is 3TB, and upon set up, it is only allowing me to use 2,048 GB, and leaves 746.52 GB labeled as "unallocated." My Disk Management is not allowing me to extend the volume of the allocated disk space nor will it let me allocate the leftover 746 GB. Is there anything I can do about this? I understand that my PC would need to use some space on the disk to format it for Windows 10, but I don't think that would require nearly a TB.

Thanks for any advice! Here's a screenshot of my Disk Manager (the disk I am setting up is Disk 0): https://imgur.com/acXAGOB

Submitted January 31, 2018 at 02:12AM by _ClayPot http://ift.tt/2EpN3JM