I turned on the computer to an Ahci port 0 device error press f2 to resume message. When I did that I reached the cmos setup utility. I check all the bio and boot and everything look good and after hit F10(SAVE and EXit) then still showing Ahci port 0 device error press f2 again BUT if I hit EXIT WITHOUT SAVE THEN THE COMPUTER BOOT BACK TO NORMAL AND ALSO I CAN DO ANY WORK ON MY PC LIKE NORMAL. Every time when turn on the computer is the same thing. If I HIT F12 to Boot then it will show Ahci port 0 device error press f2. There is no error code showing at all. Please let me know if anything I need to do. I had tries everything from the website.

Dell Studio XPS 8100, I7, window 10.