How to change a disabled UEFI boot mode to Legacy on an ACER laptop - Quora
PLEASE HELP - windows 7 will not boot on a uefi system - 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
Solved - "No Bootable device" Acer Nitro 5 laptop issue | Tech Support Guy
Question - No bootable device screen appears after Windows 10 blue screen “driver power state failure” on Acer Nitro 5 AN515-54 gaming laptop | Tom's Hardware Forum
Acer Nitro 5 No bootable device — Acer Community
No bootable device nitro 5 An15.. no legacy — Acer Community
Acer Nitro 5 Laptop How to Disable Secure Boot & Enable Boot Menu to Boot From Unsigned Boot Devices - YouTube
How to Change Acer BIOS to Legacy Mode. - YouTube
PLEASE HELP)) No bootable device on acer nitro 7 AN715-51 - Acer Nitro 5 AN515-53-55G9 - iFixit