Installed ssd and kept hdd. The hdd does not show up on file explorer. How do I access it?

[johnrware31948]

I just installed an ssd drive and kept the hhd one too. How do I access the hdd drive? It does not show up on file explorer.

 

[CountMike]

Does it show in Device manager and Disk Management ?

 

[lockdown744]

does it apper in your bios boot sequence or device manager?