MDT stands for Microsoft Deployment Toolkit, which is a collection of tools, scripts, and guidance for automating desktop and server deployments. An MDT file is a configuration file that contains settings and instructions for deploying an operating system or application using the MDT.

MDT files are used in conjunction with other files and folders, such as operating system images, driver packages, and application installers, to create a deployment share. A deployment share is a network share that contains all the necessary files and settings for deploying a specific operating system or application to multiple computers.

MDT files are created using the Deployment Workbench, which is a graphical user interface for managing deployment shares, task sequences, and other MDT components. The Deployment Workbench allows administrators to customize deployment settings, add drivers and applications, and create task sequences for automating the deployment process.

MDT files are typically stored in the deployment share’s control folder, which is a hidden folder that contains the share’s configuration settings. The control folder also contains other files and folders that are used during the deployment process, such as the boot image, unattend.xml file, and scripts.

In summary, an MDT file is a configuration file used by the Microsoft Deployment Toolkit to automate desktop and server deployments. MDT files contain settings and instructions for deploying an operating system or application, and are created using the Deployment Workbench. MDT files are stored in the deployment share’s control folder, along with other files and folders used during the deployment process.