The Drive is a brand new Samsung 860 EVO . I downloaded a fresh, and updated version of AMD's Catalyst Control Center. The screens have gone back to normal. One thing I did was disconnect the loom to the D drive while power was still on. It didn't seem to harm it as I re connected it and was able to transfer the files to the newly wiped ex-C drive. However, in the process three of the drive connections came loose at once. This created the (what was where) question. Anyway I had to go into the bios and change the boot priority. Everything good there now.