I am working on a Dell Optiplex 745, running Windows 10 Pro 64 bit. It has an Intel Core 2 6600 processor running at 2.4GHz, 4 Gb RAM and a 1 TB Seagate Barracuda drive partitioned as follows: C: Local Disk, 148 Gb; E: Back Ups, 782 Gb. Here is my problem:
When I try to boot from the hard drive, the BIOS does not recognize that a hard drive is installed. However, when I insert my Windows 10 USB Media, the machine boots normally, with my regular desktop and everything that is stored on the C partition of the hard drive. I powered down the computer, removed the Win 10 USB drive, powered up the computer, and the BIOS still does not recognize the Seagate drive. What could be causing the BIOS to not recognize that a hard drive is installed, especially when Windows 10 has no problems at all with it? And, more importantly, how can I fix it?