Bios does not see a bootable USB flash drive, how to solve?

Question

BIOS

spoiler

Notebook Acer Aspire A717-71G.
bios was in uefi mode. Recorded through Rufus on a flash Windows, in mbr format. Went into bios, switched to legacy. Bios recognized the flash drive, set usb priority higher than ssd and hdd, but overlooked and ssd turned out to be lower in priority than hdd. I started installing windows, the first error came out, since the ssd disk was in gpt format. I converted it to mbr, formatted the disk and got another error, namely 0x80300024. I found a solution that is needed in the BIOS, set the priority of ssd higher than hdd. But going into bios, usb is no longer seen. What I just did not try, usb does not see. I downloaded two different images, tried different flash drives and recorded in uefi both in ntfs and fat 32. And different windows in mbr. Tried to record and windows 8.1. I don’t know how to flash the BIOS from under Windows. With all these dances with a tambourine, the laptop refuses to see flash drives.

Answer 1

Reset BIOS. Start over. Leave only one system disk.