My second hard drive isn't being detected by anything but the BIOS?

[Axehacker32]

I currently use a 1TB WD Blue, and I have a slightly older Samsung 640GB laptop drive. I installed it in my desktop with all working cables, and it is on (I can feel it moving). But for some reason, nothing will detect it but the BIOS. There is no second drive in my file explorer or in Disk Management. I had to replace my laptop hard drive because the Windows 8 files on there got corrupted or something and it stopped working. I thought I could fix it by installing it to my desktop and formatting it so I could use it again. My desktop is running Windows 8.1. Motherboard is an ASRock A75M Pro4+. Please help me 🙁

 

[Lumber-jack]

You have to mount the drive before explorer will see it. Go into administrative tools, computer management, storage, disk management and mount the drive. It is probably easier to use a disk management utility such are Paragon

 

[Axehacker32]

I don't doubt you're right about mounting it, but the issue there is that the drive simply doesn't show up in disk management, so I can't do it. Could the problem be that I still have Windows 8 on the hard drive I'm trying to install and it's preventing me from seeing it on my normal one?