“Secure Boot Violation, Invalid signature detected. Check Secure Boot Policy in Setup.”

Areshercules — Tue, 14 Apr 2026 05:26:51 GMT

Dear members of medion Community,

I just downloaded the latest BIOS version (N.1.09MED06) and followed the installation steps.

After rebooting, the computer gets stuck in the UEFI BIOS menu with the message:
“Secure Boot Violation, Invalid signature detected. Check Secure Boot Policy in Setup.”

I tried disabling Secure Boot, but it automatically re-enables itself after restarting.

Please help me — I urgently need access to my computer.

Medion Erazer Major X20

MAJOR X20-MD 62546

MSN 30035517

xxxxxxxxxxxxxxxxx

Product: GM6PX7X

MOD-Edit:
Persönliche Daten entfernt.
Bitte sei so nett und beachte zukünftig die Nutzungsbedingungen.
Gruß - Andi

Re: “Secure Boot Violation, Invalid signature detected. Check Secure Boot Policy in Setup.”

Andi — Tue, 14 Apr 2026 05:27:40 GMT

Doppelposting. Thread geschlossen!

Hier geht's weiter ---> Klick mich!

Gruß - Andi

topic Re: “Secure Boot Violation, Invalid signature detected. Check Secure Boot Policy in Setup.” in Applications

“Secure Boot Violation, Invalid signature detected. Check Secure Boot Policy in Setup.”

Re: “Secure Boot Violation, Invalid signature detected. Check Secure Boot Policy in Setup.”