You are on this page because you are looking for solutions to DISM error 1392. The Deployment Image Servicing and Management (DISM) tool is responsible for maintaining and preparing Windows image files, including those used for repairs.
In Windows 10, the tool is used to restore the repair files that the System File Checker tool uses to replace problematic system files. It can also recover image files when the operating system crashes. The utility is also used for advanced purposes, such as mounting a virtual hard drive or a Windows image.