ImageX is a command-line tool that works with Windows® image (.wim) files. The .wim files contain one or more volume images for a Windows operating system, while a volume image represents the captured volume or partition of a Windows operating system. The primary purpose of ImageX is to capture, modify, and apply images for deployment in a manufacturing or corporate IT environment.
You typically use ImageX with the Windows Imaging File System Filter (WIM FS Filter) driver. The WIM FS Filter driver enables you to mount an image to a directory, where you can browse, copy, paste, and edit the files from a file-management tool, such as Windows Explorer, without extracting or recreating the image.