Fixing “Invalid Signature Detected” Error in Dual Boot
· 2 min read
Context
So, I was trying to install Battlefield 2042 and found out that the latest update requires Secure Boot to be enabled.
No big deal — I use dual boot (Zorin OS for work, Windows 10 for gaming), so I jumped into my X99 Qiyida D4 BIOS and enabled Secure Boot.
The result?
Linux completely refused to boot and instead displayed this lovely message:
“Invalid signature detected. Check Secure Boot policy in Setup”

Great. Here we go again...
