Windows 10: My Pc crashes randomly into bios, says “reboot and select proper input device or insert...

My Pc is a good pc runs well and doesn’t lag but crashes completely randomly and will leave me on either the bios screen or the “reboot and select proper boot device”It also occasionally boots after leaving it off for a whileThen repeats the whole Process. I’ve factory reset it and it gives little relief until I play a game with decent graphics and it sparks it back up.Pls help

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"Reboot and Select proper boot device or insert boot media in selected boot device"

Hi, I recently built a new PC with a 1TB Samsung 860 EVO SSD. I'm installing Windows 10 via USB and I've made the USB top priority in the boot list. However, when I exit BIOS, It gives me an error saying "Reboot and Select proper boot device or insert
boot media in selected boot device and press a." Is their a solution to this?

 

reboot and select proper boot device or insert boot media in selected boot device and press a key issue

I am having this problem suddenly my computer showed reboot and select proper boot device or insert boot media in selected boot device and press a key. I went to my bios settings and there's only one boot option and I'm certain it's the DVD and not the drive. And if I plug my SATA cable to a different outlet then the computer starts but after a few moments blue screen appears and then my PC restarts and show the same reboot and select proper boot device or insert boot media in selected boot device and press a key.

 

reboot and select proper boot device or insert boot media in selected boot device and press a key

hello I just bought a new PC (tower) on the fnaf and when I launch it it says "Reboot and select proper device or insert boot media in selected boot device and press a key"

the pc is an asus prime A520M-K and I really need help