How to start the BIOS and what do these settings change?

Question

linux

I wanted to install Linux as a second system with Windows. Allocate a partition for the system. I wrote the image to a flash drive.
Rebooted, went into BIOS, blogsisadmina.ru/baza-znanij/kak-zagruzit-s-fleshk... changed all the settings to those indicated on the site (could you explain what each of them gives?). And after setting up, when there should be a reboot and you will need to drag the USB flash drive to the first place, my bios does not start. Now, when starting the PC, it says SYSLINUX 6.03 edd load error boot... Next, I press F2 and Windows starts. But F2 is my BIOS output. How can I get into it to change the boot order? And will it be possible to return all the settings to their place after installing Linux?

Answer 1

loads bios>grub>system bootloader
it already loads the desired partition/disk