![I've recently opened my Asus Laptop to find that it is telling me "Secure Boot Violation Invalid signature detected. I've recently opened my Asus Laptop to find that it is telling me "Secure Boot Violation Invalid signature detected.](https://f01.justanswer.com/1uJXs8wx/15579085975248119716898369449899.jpg)
I've recently opened my Asus Laptop to find that it is telling me "Secure Boot Violation Invalid signature detected.
![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
Invalid signature detected. Check secure boot policy in setup · Issue #1666 · ventoy/Ventoy · GitHub
![After Windows Update (automatic) Red Message "Invalid Signature detected. Check Policy in Setup" - Dell Community After Windows Update (automatic) Red Message "Invalid Signature detected. Check Policy in Setup" - Dell Community](https://vjauj58549.i.lithium.com/community/s/legacyfs/online/en/communityserver.discussions.components.files/3518/IMG_20171216_075813%20small.jpg)
After Windows Update (automatic) Red Message "Invalid Signature detected. Check Policy in Setup" - Dell Community
![TechCrises.com | An IT blog that brings information about Android, Windows Phone, iOS, Apple, tips and tricks and other TechCrises.com | An IT blog that brings information about Android, Windows Phone, iOS, Apple, tips and tricks and other](https://www.techcrises.com/wp-content/uploads/2018/02/asus_invalid_signature_detected.png)