How to Resolve Invalid Signature Detected on a Windows PC? Quick Fix Below. — Auslogics Blog
I've recently opened my Asus Laptop to find that it is telling me "Secure Boot Violation Invalid signature detected.
Invalid signature detected" message prompt on every boot up. How do I fix? - CPUs, Motherboards, and Memory - Linus Tech Tips
How to Boot and Install Linux on a UEFI PC With Secure Boot
Secure Boot Violation” may display when Secure Boot is enabled in BIOS and attempting to boot into Ubuntu and Debian - ThinkStation - Lenovo Support CH