hard drive showing up in bios but not in windows

Jun 17, 2018
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I just built my first gaming PC and booted it off my ssd(I have an ssd and hard drive) everything working great except for the fact that my hard drive isn't showing up anywhere on windows. I don't think it's a formatting issue because it isn't even showing up in disk manager. the only place it shows up in is the motherboard bios settings. I've ran memory diognostic and it said there were no errors in the system. I also don't think it's a dead drive because I looked in my case and it is spinning. please help running out of space on my ssd.