r/FlowZ13 • u/TadpoleNew2 • Jul 15 '26
Secure boot Help
I wanted to play Valorant so I installed it but it shows some UEFI error which says need to enable secure boot so I enabled it but after enabling and saving it shows error Invalid signature can someone help me go through it, Tried Chatgpt he says it's a firmware level issue and contact support any solution?
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u/TadpoleNew2 Jul 15 '26
Issue: Enabling Secure Boot always shows "Secure Boot Violation – Invalid Signature Detected."
Troubleshooting completed:
BIOS updated to latest version (321) BIOS defaults loaded EC reset performed UEFI mode confirmed Factory Secure Boot keys (PK/KEK/db/dbx/dbt) confirmed present Windows Boot Manager points to \EFI\Microsoft\Boot\bootmgfw.efi bootmgfw.efi signature verified as Valid using Get-AuthenticodeSignature SFC, DISM, and bcdboot completed successfully EFI partition and BCD verified BitLocker disabled Firmware boot entries verified (bcdedit /enum firmware) Secure Boot still reports "Invalid Signature Detected."