Question

My monitor, every time I try to turn it on says this "reboot and select proper boot device or insert boot media in a selected boot device and press a key" I've already tried to press all the keys to enter BIOS but since before this problem happened I enabled ultra-fast boot so it doesn't give me time to press any of them and I don't know what to do I've seen so many videos and I just can't find any that could possibly help me

Answer 1

You may have a corrupt system or your hard drive may be loose. (it used to be a common issue for me when I upgraded my computer to SSD, that computer is only used for backup purposes)