Secure Boot Violation” may display when Secure Boot is enabled in BIOS and attempting to boot into Ubuntu and Debian - ThinkStation - Lenovo Support GB
![Notebook] When starting up the laptop, a 'Secure Boot Violation' message appears | Official Support | ASUS Global Notebook] When starting up the laptop, a 'Secure Boot Violation' message appears | Official Support | ASUS Global](https://kmpic.asus.com/images/2020/03/13/89ffedf4-2d0a-4cce-b34e-f3184127da7b.png)
Notebook] When starting up the laptop, a 'Secure Boot Violation' message appears | Official Support | ASUS Global
![Invalid signature detected. Check secure boot policy in setup · Issue #1666 · ventoy/Ventoy · GitHub Invalid signature detected. Check secure boot policy in setup · Issue #1666 · ventoy/Ventoy · GitHub](https://user-images.githubusercontent.com/29574622/173393546-0f71a7f0-b100-416e-98d7-5a37e1af98cf.jpg)
Invalid signature detected. Check secure boot policy in setup · Issue #1666 · ventoy/Ventoy · GitHub
![Shaun Cassells on X: "#windowsinsiders #Windows10 Fast Ring 17711 just had this error after first restart. Secure Boot Violation. Only fix was to turn off secure boot in bios. Building happily now. Shaun Cassells on X: "#windowsinsiders #Windows10 Fast Ring 17711 just had this error after first restart. Secure Boot Violation. Only fix was to turn off secure boot in bios. Building happily now.](https://pbs.twimg.com/media/Dhef84EUYAA6vE7.jpg:large)