Secure Boot Violation – Invalid signature

[SalemMA]

I am getting the Secure Boot VIolation - Invalid Signature screen.  I have tried following the steps to reset through BIOS, but the categories (such as Configuration, Security, Etc) and the choices underneath them on my screen, do not match those mentioned in the steps.  I cannot find these phrases, "Load HP Factory Default keys" or "Clear All Secure Boot keys" in my lists under the appropriate category.  How do I fix the Secure Boot VIolation-Invalid Signature issue on my HP Pavilion PC Model Number TP01-1055m?

[Bill_To]

Greetings @SalemMA 

HP TPO1-1xxxa PCs (your PC is in this group) have reached end of development (EOD); no software updates/no driver updates.

What is your PC's Secure Boot status in Windows Security>Device security? There may be nothing you can do if Secure Boot status states your MB needs a firmware update.

This means the PC needs a HP firmware (BIOS) update to fix this problem. But your PC will, most likely, not receive future BIOS updates.

Your options:

- You can disable Secure Boot/enable Legacy support (not recommended).

- You could try the workaround described Here. But this workaround may only work with HP PCs that will receive future BIOS updates.

And, I'm thinking your PC would also have to be able to accept the new Windows 2023 security certificate updates.

The Secure Boot/Windows 2023 security certificate problem can be confusing when a PC is placed into EOD.

[Bill_To]

Greetings @SalemMA 

Anecdotal evidence seems to suggest the workaround solution described Here fixes this problem.

It does not matter if the HP PC is in mainstream support or EOD status.

Regards