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UEFI (Unified Extensible Firmware Interface)

UEFI is modern firmware interface between operating systems and hardware, replacing legacy BIOS.

What is UEFI?

UEFI (Unified Extensible Firmware Interface) is a specification defining a software interface between an operating system and platform firmware, replacing the legacy BIOS.

UEFI features

Faster boot, GUI interface, Secure Boot, GPT support, Network capabilities.

Common misconceptions

  • "UEFI is just modern BIOS" — Different architecture
  • "UEFI is less compatible" — Legacy mode available
  • "Secure Boot limits OS choice" — Can be configured