Nitro AN515-43 How can I enable Legacy boot when the option does not appear in the BIOS? — Acer Community
Security Boot Fail || How to disable secure boot Acer Nitro 5 - YouTube
No Bootable Device" - Acer Nitro 5 — Acer Community
Acer nitro wont start. I keep trying to change uefi to legacy as that's what it says to do when I look up solutions but legacy won't come up. Help : r/AcerOfficial
No bootable device Nitro-5 — Acer Community
No Bootable Device" - Acer Nitro 5 -AN 515-56 September 2021 — Acer Community
Can't boot from USB and install Windows : r/techsupport
Help Requested: Acer Nitro 5 AN515-54 No Bootable Device, No HDD1 shown, No Boot Priority visible — Acer Community
PLEASE HELP - windows 7 will not boot on a uefi system - nitro 5 — Acer Community
How to change a disabled UEFI boot mode to Legacy on an ACER laptop - Quora