Secure Boot Violation- Invalid Signature detected. Check Secure Boot - Microsoft Community
ASUS Error: Invalid Signature Detected. Check Secure Boot Policy in Setup – TechCrises.com
Secure Boot Violation” may display when Secure Boot is enabled in BIOS and attempting to boot into Ubuntu and Debian - ThinkStation - Lenovo Support CH
Take Control of Your PC with UEFI Secure Boot | Linux Journal
How to Fix the 'Secure Boot Violation - Invalid Signature Detected' Problem on Windows?