The Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI firmware settings are used to configure the hardware and software on a computer, and can be accessed during the boot process. To access the UEFI firmware settings, you will need to press a specific key or key combination during the boot process. The key or key combination will vary depending on the manufacturer of your computer.
UEFI firmware settings are important because they allow you to configure the hardware and software on your computer to meet your specific needs. For example, you can use UEFI firmware settings to change the boot order of your computer, to enable or disable certain hardware devices, and to set the time and date.