GA-7PESH2 (rev. 1.0) Secure Boot

Hello All,
This is my first post in the forum and I hope someone can help and hope I am posting this in the correct place.

I have a GA-7PESH2 (rev. 1.0) with two Xeon-E5 2697 running Windows 10 for a long time. I am using it for research work. Motherboard manual says, secure boot menu is available but I don’t see secure boot menu under security menu. I even tried disabling CSM but still I see only Administrator Password" and “User Password” under security menu.

Thank you!

Are you on the most up to date BIOS?

Yes. It is R17.

Here is a screenshot of the Security menu of the bios.