Re: General Question About BIOS and UEFI

On 27/07/2021 18:24, David W. Hodgins wrote:
> On Tue, 27 Jul 2021 10:40:03 -0400, tb <[email protected]> wrote:
> 
>> Newbie question...
>>
>> If I were to purchase some kind of mainstream desktop PC without any OS
>> preinstalled and if I were to boot up such PC and press F2 repeatedly,
>> would I find myself in the BIOS screen or the UEFI screen?
>>
>> Or maybe the UEFI screen is available only if Microsoft Windows is
>> installed?
> 
> It will be a uefi screen on anything produced in the last decade or so. 
> The uefi
> firmware is stored on the motherboard, not on a disk drive. The software 
> is a
> customized version of uefi firmware developed by or for the motherboard 
> manufacturer.
> 
> Note that different systems use different keys, so check the manual. It 
> isn't
> always f2.
> 
> Regards, Dave Hodgins
> 
As already said it will be UEFI but generally that will have a legacy 
mode option. Legacy emulates the original BIOS allowing an old OS which 
knows nothing about UEFI to be installed.