HP Z440 Workstation […]
HP Z440 Workstation
Intel Xeon E5-1650v3 3.5GHz 6 core processor
64GB DDR4 ECC RAM (4x16GB)
Gigabyte WINDFORCE NVIDIA GeForce GTX1070 8GB PCIe video card
LG GH24NS95 24X DVD/RW drive
HP EX950 512GB NVMe SSD via M.2 to PCIe x4 adapter
Seagate ST2000DM001 2TB 7200RPM hard drive
Windows 10 Pro 1909
2xUSB 2.0 ports rear
4xUSB 3.0 ports front/rear
Audio in/out jacks front/rear
Get one more hard drive sled/caddy for yours. I do this all the time to fill up the empty slots in my computers just in case I add more drives.
Dump the Seagate ST2000DM001. Not trusted; Get WD gold 4TB or 6TB before doing it, do a MBR2GPT on your 2TB and make sure UEFI is on in bios, Detection of either MBR or GPT drives and usb sticks are automatic at each boot up. When installing new OS on any UEFI capable computer, you need to do 2 things: rufus utility is set as partition scheme: GPT, Target system: UEFI (non CSM); filesystem: NTFS when creating from bootable windows 10 64 iso. This is same image that you can do for non-UEFI computer as well by using MBR instead of UEFI, this is reason you did not see a storage disk when attempting to install OS on a UEFI only computers using a MBR bootable usb install stick. Also this is needed to set the hard drive as GPT also before transferring hard drive to the UEFI computer before installing win 10 OS or UEFI linux.
Your GTX1070 is also UEFI vbios as well. You'll have more reliable filesystem with multiple backups of GPT file system. Then Add second WD 4TB or 6TB gold, before partitioning, Go into filepart and set the WD as GPT, exit diskpart, then use your favorite clone utility. This way you don't have to pay the utility to do clone from MBR to GPT drives. Cloning MBR to MBR or GPT to GPT is free.
Great Northern aka Canada.