Unified Extensible Firmware Interface
thumb|Boot order selection menu on a ThinkPad T470|Lenovo ThinkPad T470 with both UEFI and [[BIOS support]] thumb|The UEFI implementation is usually stored on NOR flash|NOR-based [[flash memory located on the motherboard. Various I/O protocols can be used, SPI being the most common.]]
Key facts
- Technology standard.title
- Unified Extensible Firmware Interface
- Technology standard.image
- Logo of the UEFI Forum.svg
- Technology standard.image_size
- 100px
- Technology standard.abbreviation
- UEFI
- Technology standard.status
- Published
- Technology standard.year_started
- 2006
- Technology standard.version
- 2.11
- Technology standard.version_date
- 16 December 2024
- Technology standard.organization
- UEFI Forum
- Technology standard.predecessor
- BIOS on IBM PC compatible computers
- Technology standard.domain
- Firmware
via Wikipedia infobox
Article
51 sectionsContents
- History
- Compatibility
- Processor compatibility<span class="anchor" id="HANDOVER"></span><span class="anchor" id="BOOT-STUB"></span>
- Disk device compatibility<span class="anchor" id="DISKDEVCOMPAT"></span>
- Linux
- Microsoft Windows
- Features
- Services<span class="anchor" id="GOP"></span><span class="anchor" id="MM"></span><span class="anchor" id="VARIABLE"></span><span class="anchor" id="TIME"></span>
- Applications
- Protocols
- Device drivers<span class="anchor" id="EBC"></span>
- Graphics features
- EFI system partition
- Booting
- UEFI booting<span class="anchor" id="UEFIBOOT"></span><span class="anchor" id="BOOT-MANAGER"></span>
- CSM booting<span class="anchor" id="CSMBOOT"></span>
- Network booting
- Secure Boot<span class="anchor" id="SECURE-BOOT"></span>
- UEFI shell<span class="anchor" id="SHELL"></span>
- Commands
- Extensions
- UEFI Capsule
- Hardware
- Classes
- Boot stages
- SEC – Security Phase
- Responsibilities
- PEI – Pre-EFI Initialization
- PEI Foundation
- PEI Dispatcher
- Pre-EFI Initialization Modules
- PEIMs-to-PEIMs Interfaces
- DXE – Driver Execution Environment
- BDS – Boot Device Select (Boot Manager)
- TSL – Transient System Load
- RT – Runtime
- Usage
- Implementations
- Platforms
- Operating systems
- With virtualization
- Vulnerabilities
- Applications development<span class="anchor" id="EADK"></span>
- Criticism
- Secure Boot<span class="anchor" id="Secure Boot criticism"></span>
- Firmware problems
- See also
- Notes
- References
- Further reading
- External links
thumb|Boot order selection menu on a ThinkPad T470|Lenovo ThinkPad T470 with both UEFI and [[BIOS support]] thumb|The UEFI implementation is usually stored on NOR flash|NOR-based [[flash memory located on the motherboard. Various I/O protocols can be used, SPI being the most common.]]
Unified Extensible Firmware Interface (UEFI, as an initial) is a specification for the firmware architecture of a computing platform. When a computer is powered on, the UEFI implementation is typically the first that runs, before starting the operating system. Examples include AMI Aptio, Phoenix SecureCore, TianoCore EDK II, and InsydeH2O.