Laptop Secure Boot not enabling
4.5
The Secure Boot option in BIOS is greyed out or won't stay enabled.
Symptoms
- "Secure Boot State: Off"
- Option locked
- Boot error
Possible Causes
- CSM enabled
- Legacy boot mode
- No supervisor password
Step-by-Step Fix
1
Disable CSM
Secure Boot requires UEFI mode; disable "Compatibility Support Module" (CSM).
2
Set BIOS Password
Some laptops require a "Supervisor Password" to be set before allowing Secure Boot changes.
3
Restore Factory Keys
Use the "Restore Factory Keys" option in the Secure Boot menu.
When to See a Technician
You cannot enable Secure Boot if your drive is using the old MBR partition style; it must be GPT.
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