Okay so I just built my first gaming pc and it starts up and everything and when it starts up that quote pops up on the monitor. Now my computer is a Gigabyte Ultra Durable. I have looked at all of the youtube videos on this issue and they all say the same thing, to check the wires and go to the Operating System and set the main Hard Drive to priority one. I did both of these and the same messag still pops up. I have to press Ctrl + Alt + Delete and it takes me to the main screen and I press F12 and it takes me to the booting system. At first the first booting priority was the DVD or DISC hard drive and my main hard drive which is a WDC WD10EZEX-08WN4A0 (a WD Blue PC Hard Drive). So after messing around in the operating system and putting the priority and first option of the boot setup to my main hard drive I click exit and save changes and restart and it takes me back to the same screen with the Reboot and Select proper Boot Device thing. Now I checked if the wires for my Hard Drive were pressed in all the way but I they are since the computer obviously detects it. I do not know what else to do and I'm very stressed out. I know the hard drive isn't faulty or anything since it detects it right? I spent over 4 months just saving money to buy this thing and even had to RMA the mobo and the RAM so it has been a long time and now this? I hope one of you guys will help me fix my problem. This website always helps me and I hope this will be my last time here. Thank you and Happy Holidays if you believe in that.