Alright, so I just finished building my gaming rig. I have a 120 GB corsair SSD and a 500 GB Western Digital HDD. I unplugged my HDD in order to install my OS on my SSD in my bios. So now I plugged the HDD back in, and restarted the system and my HDD will not show up on My Computer. I went to the computer management screen and it says shows that my Hard drive is there, but all the space is unallocated. I went to my bios, and it does not show up there. Can anyone tell me how to fix this? Do I just need to allocate hard drive space? If so, how would I go about doing that. Any help will be greatly appreciated.