Eurocom Neptune 3 - Manual (Page 151)

BIOS Utilities
Security Menu 5 - 13
5
Secure Boot (Security Menu)
Secure Boot prevents unauthorized operating systems and software from loading
during the startup process. Secure Boot is available as a menu option if you have
enabled UEFI Boot (see
“Boot Menu” on page 5 - 14 ). Enabling Secure Boot will
bring up the Secure Boot Mode menu to enable you to configure Secure Boot as
Standard (with a fixed secure boot policy), or Custom (which enables you to make
changes to the Image Execution Policy and Key Management database).