Why does my Startup Security Utility window look different? I am trying to check the security of my Mac Mini before installing Windows with bootcamp.
According to this article, the window should look like this:

However mine looks like this:

Why is that and how can I make sure I have the right settings before installing windows?
Mac Mini mid 2011 with High Sierra 10.13.6
The linked support page only addresses Macs with a T2 security chip.
Your MacMini from 2011 does not have this chip.
Keep in mind that BootCamp will not able to install Windows 10 on your Mac.