Hello everyone, I hope you are well. If I come here it is that I tried everything but nothing worked. I explain to you, when I install my OS (Linux) and that I restart my computer I have this message "Reboot and select proper Boot device or Insert Boot Media in selected Boot device and press a key". I tried everything, I searched in my BIOS but nothing worked. However, I do not have the option to change the Boot Mode (UEFI, CSM ...)

In short, if someone qualified in the field can come to help me it is with great pleasure.