Can't enable Secure Boot on my PC

I'm trying to enable secure boot on my PC so I can play a game that requires it, but I've been running into some issues with it and specifically my BIOS settings/menu.

 Basically, I get to the point where you restore factory defaults in the secure boot menu of the BIOS and a pop up that I see in tutorials does not appear for me, and the system mode doesn't change to "User" when it is supposed to. Once I confirm "Yes" to installing the factory keys, nothing happens. The system is still in setup and when I try to enable secure boot, I'm told that "Secure Boot can be enabled when System in User Mode. Repeat operation after enrolling Platform Key(PK)". Searching around online for "enrolling Platform Key(PK)" leads me back to the same tutorials on enabling secure boot that aren't working for me. In these tutorials, it looks like I'm supposed to get a popup after installing factory keys asking me if I want to reset without saving when switching back to the "standard" secure boot mode, at which point the system mode switches to User and secure boot is successfully enabled. I don't get that popup, instead the system mode doesn't change when I install the factory keys or switch secure boot mode back to standard.

Hopefully someone can help me here, I've already tried clearing CMOS and resetting the BIOS to no avail, and nothing online that I've found has had any fixes for the problem. 

I get to this point where I set the secure boot mode to custom and confirm that I want to restore factory keys, but the system mode stays in "Setup" as seen below and I don't get the popup asking me if I want to reset without saving.

And here is my system information.