Unified Extensible Firmware Interface (UEFI)
Specification
Version 2.7 Errata A
August 2017
This Unified Extensible Firmware Interface (hereafter known as UEFI) Specification describes an
interface between the operating system (OS) and the platform firmware. UEFI was preceded by the
Extensible Firmware Interface Specification 1.10 (EFI). As a result, some code and certain protocol
names retain the EFI designation. Unless otherwise noted, EFI designations in this specification
may be assumed to be part of UEFI.
