ECS BSWI-D2 - Chapter 4 Using the Motherboard Software; Auto-installing under Windows 7(x64);8.1(x64);10(x86;x64); Running Setup

Chapter 3
BSWI-D2 USER MANUAL
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Secure Boot Mode (Standard)
This item is used to select secure boot mode. When you select standard mode,
secure boot policy is fixed; when you select custom mode, the image execution policy
and secure boot key databases are changeable.