Make sure your hard drive is connected properly. Wiggle both data and power cables on the drive. Make sure your SATA data cable is plugged into the 1st SATA port on your motherboard. Check your manual to see which one that is.
My hard drive is connected to my power supply. Does it need to be plugged into the motherboard as well? If so was my motherboard supposed to come with a cable to do this? Thanks for your help.
Edit: ok I fixed it! Thanks a lot.