Unified Extensible Firmware Interface (UEFI)

Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI is meant to replace the Basic Input/Output System (BIOS) firmware interface, present in all IBM PC-compatible personal computers. UEFI can support remote diagnostics and repair of computers, even with no operating system installed.

UEFI defines a new model for the interface between personal computer operating systems and firmware. The interface consists of data tables that contain platform-related information, plus boot and runtime services that are available to the operating system and its loader. These services include securing boot, platform configuration, and diagnostics. UEFI also defines an interface between the operating system and the firmware boot manager, which is responsible for launching an operating system loader.

The UEFI specification is managed by the UEFI Forum, which was formed in 2005. The forum is responsible for the development, promotion, and certification of UEFI-compliant firmware and systems.

What is UEFI Unified Extensible Firmware Interface and how is it different from BIOS?

UEFI is a specification that defines a software interface between an operating system and platform firmware. UEFI is meant to replace the traditional BIOS firmware interface used by most PCs.

The key difference between UEFI and BIOS is that UEFI is capable of booting from drives larger than 2.1TB (terabytes) in size, whereas BIOS is not. UEFI is also able to handle the GUID Partition Table (GPT) scheme, which is required for drives larger than 2.1TB. BIOS can only handle the Master Boot Record (MBR) partitioning scheme.

Another difference between UEFI and BIOS is that UEFI offers more security features than BIOS. For example, UEFI includes a secure boot feature that prevents unauthorized code from running during boot. BIOS does not include this feature.

Overall, UEFI is a more modern and capable firmware interface than BIOS. However, BIOS is still used on many PCs due to its simplicity and compatibility with a wide range of operating systems and hardware.

What does UEFI firmware do?

UEFI is a firmware interface that is used to boot computers. It is a replacement for the BIOS and allows for a more modern boot process. UEFI provides a number of benefits over the traditional BIOS, including support for larger boot partitions, faster boot times, and better security.

What is difference between BIOS and UEFI?

The BIOS (Basic Input/Output System) is a chip that stores basic information about your computer's hardware and is responsible for booting the computer. The UEFI (Unified Extensible Firmware Interface) is a newer type of BIOS that is designed to improve upon some of the limitations of the BIOS.

One of the main differences between the BIOS and UEFI is that the UEFI has a graphical user interface (GUI), while the BIOS does not. The UEFI also has support for larger hard drives and can boot from drives larger than 2TB. Additionally, the UEFI is faster than the BIOS and provides more security features.

Should I change UEFI firmware settings? No, you should not change UEFI firmware settings unless you are an experienced computer user. UEFI is a complex system that controls how your computer starts up and provides security features. Changing UEFI settings can cause your computer to stop working or to not start at all.

What is the UEFI boot mode?

The UEFI boot mode is a newer, more modern way to boot a computer. It is designed to replace the older BIOS boot method. UEFI stands for "Unified Extensible Firmware Interface".

Unlike BIOS, UEFI has a graphical user interface (GUI), which makes it easier to use. It also supports larger hard drives and more modern file systems, such as NTFS.

To boot in UEFI mode, you will need to change the boot mode in your computer's BIOS/UEFI settings. This is usually done by pressing a key during boot (often F2, F12, DEL, or ESC) to enter the BIOS/UEFI settings menu. From there, you will need to find the boot mode setting and change it to UEFI.