I got the blue screen of death. I got so nervous that I forgot to take note of the message and turned it off and on immediately. I entered the BIOS to set it to default. When I tried to reboot it doesn't. Now it says missing operating system and when I try to get into the Bios again it doesn't response (with my motherboard I have to press del) I chose storage at the top but I dont know what the problem is. I had not installed any software or hardware recently.