UEFI or also BIOS

[leskgr]

Do I need UEFI boot to install Win 11 here or can it be installed also on BIOS (non UEFI) computers?

[AveYo]

The script creates dual UEFI / BIOS booting media (via native MCT or the DIR2ISO snippet)
11 requires UEFI and SecureBoot, but the script bypasses that automatically