Enabling Secure Boot on an ASUS motherboard involves using the BIOS/UEFI settings and ensuring the system is set to UEFI mode with the proper Secure Boot keys loaded. The exact steps can vary slightly by model and BIOS version, but the general sequence is consistent. Direct steps you can follow
- Enter BIOS/UEFI
- Reboot your PC and press Delete or F2 (often Delete is the standard key) when the ASUS logo appears to enter Advanced/UEFI mode.
- Set OS type and boot mode
- In the Boot/Security section, set OS Type to Windows UEFI Mode (or similar, sometimes listed as Windows UEFI or Other OS—select Windows UEFI Mode to enable Secure Boot when available).
- Ensure that the firmware is operating in UEFI mode (not Legacy/CSM).
- Enable Secure Boot
- Navigate to the Secure Boot menu (often under Boot or Security).
- If the option is greyed out, switch Secure Boot Mode from Standard to Custom (or User) if prompted.
- Install or load default Secure Boot keys (often labeled Install Default Secure Boot Keys or Key Management). Confirm any prompts to load Certified Keys.
- Change Secure Boot State to On if it isn’t already.
- Save and exit
- Save changes and exit the BIOS. The system will reboot with Secure Boot enabled.
- Verify in Windows
- In Windows, open System Information (msinfo32) and check Secure Boot State: On.
Notes and tips
- If the option to enable Secure Boot is not visible, ensure the system is in UEFI mode and that CSM/Legacy options are disabled. Some older or premium boards require enabling TPM (or fTPM) before Secure Boot becomes available.
- If you’re dual-booting with Linux or other OSes, make sure those OSes support Secure Boot with the current keys, or use the appropriate key management settings in the BIOS.
- After enabling Secure Boot, you can verify by launching System Information in Windows or by using a TPM/secure-boot diagnostic tool.
If you share your exact motherboard model (e.g., model name from your motherboard box or BIOS splash screen) and your BIOS version, a more precise, model-specific path through the menus can be provided.
