BIOS ( InsydeH20 v3.5 ) no secure boot, legacy mode, UEFI selection — Acer Community
InsydeH2O® UEFI BIOS | Insyde Software
Insyde Software - Wikipedia
Solved: Used laptop has strange BIOS - Dell Community
khubik on Twitter: "I had a battle for advanced settings with InsydeH20 BIOS installed on Acer Aspire One AOD255. I emerged victorious and now I have full right to humiliate the loser