You are right tain, you can interpret it that way. If you dig down to the bottom, there are 2 types UEFI 2.3.1 firmware and BIOS. We call "it" (the menu) the BIOS still. UEFI BIOS (sic) usually has legacy support in it and can be changed in the Boot section or CSM. You can choose if you want devices to boot in UEFI or Legacy mode. Some systems let you enable both, but I prefer to use one or the other... Now the amount of systems that would let you replace the entire firmware with an actual BIOS rather than a UEFI is going to be limited. For example, the Intel 6 series boards you can find some that have either a BIOS or UEFI. Intel coincided adding UEFI to their boards with support for 3rd gen CPUs. You can find board REVs here: (3rd Gen-Ready AA#s) http://www.intel.com/support/motherboards/desktop/sb/CS-033076.htm But I am unsure if you could dump the BIOS from the old rev and put it on the new rev. I think for most people's concerns is that they can disable UEFI boot in the BIOS (and secure boot or whatever else) if they have the option. Then, for all intents and purposes, they have normal "BIOS" ... As mentioned, all "BIOSes" are different and some may not operate the same way as others.