MSI Motherboard Secure Boot Guide - 02 - 2

This Guide applies to the following motherboards:

• MAG B660M MORTAR WIFI DDR4 (MS-7D42)

Step 1: Accessing BIOS Settings

• Manually restart PC and continuously press Delete to enter MSI motherboard BIOS
• Enter Advanced Mode (or press F7)

Step 2: Enabling Secure Boot - Mode Setup

• Navigate: SETTINGS → Advanced
• Set BIOS CSM/UEFI Mode to UEFI

Step 3: Enabling Secure Boot - Key Enrollment

• Navigate: SETTINGS → Security → Secure Boot
• Click Enroll all Factory Default keys

Step 4: Enabling Secure Boot - Pop-up Handling

1. First pop-up ("install factory defaults"): Select YES
2. Second pop-up ("Reset Without Saving"): Select NO

Step 5: Finalizing Secure Boot

• Return to SETTINGS → Security
• Set Secure Boot to [Enabled]
• Press F10 to save and restart

After completing the above settings, please open GearUP and recheck whether Secure Boot has been enabled.