How do I do this on a Dell?
Underneath the list that I already mentioned in my first post there is another list:
Peripheral Device setting (OPROM setting)
Change boot mode setting
If I choose "Enter Setup" and go to the "Boot" tab I see this:
Secure Boot <Disabled>
Load Legacy Option Rom <Disabled>
Boot List Option <UEFI>
Add Boot Option
Delete a Boot Option
View Boot Option Proberties
Legacy Boot is greyed out because it is set to UEFI, not LEGACY; but why is "Delete a boot option" and "View boot option properties" greyed out? I can't find anywhere to set first boot device.