Asus Z87-A User Manual

Contents

2-42 ASUS Z87-ADB ManagementThe db (Authorized Signature database) lists the signers or images of U�FIapplications, operating system loaders, and UEFI drivers that you can load on thesingle computer.Delete the dbAllows you to delete the db file from your system.Configuration options: [Yes] [No]Load db from FileAllows you to load the downloaded db from a USB storage device.Append db from FileAllows you to load the additional db from a storage device so that moreimages can be loaded securely.The db file must be formatted as a U�FI variable structure with time�based authenticatedvariable.DBX ManagementThe dbx (Revoked Signature database) lists the forbidden images of db items that areno longer trusted and cannot be loaded.Delete the dbxAllows you to delete the dbx file from your system.Load dbx from FileAllows you to load the downloaded dbx from a USB storage device.Configuration options: [Yes] [No]Append dbx from FileAllows you to load the additional dbx from a storage device so that moredb’s images cannot be loaded.The dbx file must be formatted as a U�FI variable structure with time�based authenticatedvariable.2.8.19 Boot Option PrioritiesThese items specify the boot device priority sequence from the available devices. Thenumber of device items that appears on the screen depends on the number of devicesinstalled in the system.• To access WindowsTo access Windows® OS in Safe Mode, do any of the following:• Press when ASUS Logo appears.Press when ASUS Logo appears.• Press after POST.Press after POST.• To select the boot device during system startup, press when ASUS Logoappears.