My computer has two internal hard drives--when I got it a friend installed an SSD as the primary drive and moved the one the computer came with to the optical drive slot. A few days after he did this my computer stopped recognizing the second drive. I think what I did to fix it that time was update the driver, but I can't figure out where to even find the driver this time--I can't do it in Device Manager because the drive isn't showing up there, when I look on the computer manufacturer's site (HP) it is not able to auto-detect the computer and tells me that neither the serial number nor the computer model name exist when I try to search manually, and when I just google all I can find is where to buy the drive. Not sure what else to do. Most troubleshooting suggestions I'm finding online involve activating the drive in Device Manager, but as I said it's not showing up there, or opening the computer up, and I am nervous about messing something up if I do that.