UEFI is a specification that defines a software interface between an operating system and platform firmware. UEFI is a more secure replacement for the older basic input/output system (BIOS) firmware interface present in some personal computers, which is vulnerable to malware that performs attacks during the boot or power on self-test processes.

By default, MDT creates the appropriate partitions to support computers running UEFI. MDT supports UEFI versions from 2.0 up to 2.3.1. UEFI 2.3.1 is a newer version of UEFI that will be used on Windows 8 logo–compliant computers. UEFI requires the use of the new GPT partition format, which is described in the section, Support Deployment to Computers that Require the New GPT Format.

Support for this feature in ZTI and UDI requires System Center 2012 Configuration Manager with SP1 Beta. This feature is fully supported in LTI.

Note   The Windows ADK is required when deploying a Windows operating system to a computer with UEFI 2.3.1.

For more information about UEFI support in MDT, see the section, Deploy to Computers with UEFI, in the MDT document Using the Microsoft Deployment Toolkit.

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Improvements for All MDT Technologies