The “bootmenupolicy” setting in the Boot Configuration Database (BCD) defines the type of boot menu (Standard vs. Legacy) the system will use. For Windows 11, 10, Windows 8.1, Windows 8, and Windows RT, the default is Standard. For Windows Server 2012 R2, Windows Server 2012, the default is Legacy. When Legacy is selected, the Advanced options menu (F8) is available.Read more
