How to Fix the 'Secure Boot Violation - Invalid Signature Detected' Problem on Windows?
How to Resolve Invalid Signature Detected on a Windows PC? Quick Fix Below. — Auslogics Blog
Invalid signature detected. Check Secure Boot state in Setup” error | Support is >Here
Secure Boot Violation” may display when Secure Boot is enabled in BIOS and attempting to boot into Ubuntu and Debian - ThinkStation - Lenovo Support CH