Today I installed a 256 GB Samsung 850 EVO SSD on my PC. I set it up and am installing some games onto it right now. However, in my Asus UEFI/BIOS, when I set my Solid State at the top of my boot priority, I get a screen saying "Reboot and Select Proper Boot Device" and "Insert boot media in selected Boot device and press a key." The only way out of this was quickly going back into BIOS, and setting my old 1TB storage drive as my boot drive. Considering faster boot times and faster Windows was one of the reasons I got the SSD in the first place, I'd like it to work, please help.