To open (enable) Secure Boot, you need to access your computer's UEFI (BIOS) settings and enable the Secure Boot option. Here is a clear step-by-step process:
- Check if Secure Boot is already enabled:
- Open the Start menu and type "System Information" to open it.
- Look for "Secure Boot State" in the system information. If it says "Off," Secure Boot is disabled.
- Restart your computer into UEFI (BIOS) settings:
- Open Settings, go to "Windows Update" → "Advanced options" → "Recovery."
- Under "Advanced startup," click "Restart now."
- When your PC restarts and you see the "Choose an option" screen, select "Troubleshoot" → "Advanced options" → "UEFI Firmware Settings," then click "Restart" to enter BIOS.
- Enable Secure Boot in BIOS/UEFI:
- In BIOS, go to the "Boot" tab.
- Locate "Secure Boot" and set it to "Enabled."
- If you see an option for "CSM" or "Compatibility Support Module," disable it to ensure the BIOS is in UEFI mode.
- Make sure "OS Type" is set to "Windows UEFI mode."
- Save changes and exit BIOS (usually by pressing F10).
- Verify Secure Boot is enabled:
- After the PC restarts, open System Information again and check "Secure Boot State" to confirm it is "On."
Note: The exact key to enter BIOS (like Delete, F2) and menu layout may differ based on your computer or motherboard manufacturer. Consult your manufacturer's support if unsure. This process ensures your PC boots only authorized software, enhancing security. This guide summarizes detailed steps from reliable sources for various Windows PCs and ASUS motherboards, applicable broadly to enable Secure Boot in most cases.