I have a 4 year old machine, it has legacy BIOS, no UEFI.
It has a quick boot so no screen on start up with a key to press, i.e F2 or F12.
I have tried these 4 methods to gain access to the BIOS https://www.isunshare.com/windows-password/four-methods-to-access-uefi-bios-setup.html#method3
but none has worked. When I go to advance options -> startup settings and click restart the screen goes blank and does not go to the next screen with the F10 option to launch recovery environment.
I've also tried various methods holding, shift, esc and F2 keys on start up. Nothing is happening.
I've set up linux on many other machines in the past and never had this problem. Any help would be appreciated.