Question Windows Doesn't Detect Second Hard Disk

[RTechT]

I just got a new Seagate and I installed it with my WD Windows drive. When I tried booting at first the system showed the error "Non-system disk" so I changed the boot order and that fixed the issue. However now the HDD doesn't show in Windows 10 either, nor in Device Manager or Disk Management. It only shows in BIOS. Also, when I make the secondary HDD the first in boot order, it shows some Intel Agent Media error or something saying "Media connection failure: check cable". But I have a laptop that shows the same and works alright, and it has only one hard drive installed in it. Help would be much appreciated.

 

[SkyNetRising]

List full specs of the system.
Show screenshots from Disk Management, Device Manager(disk drives section expanded) and Windows Storage spaces.
(upload images to imgur.com and post link)

 

[RTechT]

System Specs:
Windows 10 Pro x64
8GB RAM
Intel Core-i5 2400 3.10GHz
NVIDIA GeForce GTX 750 Ti
Western Digital 500 GB
Seagate Barracuda 500GB

Screens:

https://imgur.com/a/xhAr3JQ

View: https://imgur.com/a/xhAr3JQ

 

[SkyNetRising]

Motherboard model name? (you can find it with CPU-Z)

Screenshot from Device Manager (disk drives section expanded) ?