Question HDD doesn't work alongside SSD

GigataBG

Commendable
Aug 13, 2021
20
2
1,515
Hello everyone so my friend bought a pc but it had only an 250gb kingston ssd, so we decided to use his old HDD as a secondary/storage drive. (Btw we installed windows on the SSD)
And when we boot to the SSD the HDD doesn't show up anywhere including disc management ,but when we boot to the HDD the SSD shows up as a corrupted disc even tho it's perfectly functional. Any suggestions.
 

GigataBG

Commendable
Aug 13, 2021
20
2
1,515
GPU: Gigabyte RX570 4GB
CPU: Intel Core I5-4570
Motherboard: ASROCK H81Pro
PSU: Hyper 700W 120mm
Ram: Kingston DDR3 2x4GB
OS: Windows 10

And no it didn't show up in device manager