I just installed a new SSD with fresh Windows and everything is working fine except I can't see my old HDD? Either in Disk Management or my BIOS boot menu. I didn't touch the old drive at all, just installed the new SSD. Any gamers know what the deal might be? Obvious thing is open it and see if I somehow fucked up the cables, but since I didn't go anywhere near them I'd rather save that as a last resort before I move and open up the case again. I'm installing all the drivers on my motherboard disc just to make sure but I dunno if that would have anything to do with it.