Deployment Image Servicing and Management (DISM) is a command-line tool built into Windows 10 that allows network administrators to prepare, modify, and repair system images, including Windows Recovery Environment, Windows Setup, and Windows PE (WinPE). However, you can also use the tool with the local recovery image to fix most system problems.
When you try to fix a specific error, figure out why the computer stopped booting correctly, or resolve performance problems, the System File Checker (SFC) is one of the best to replace missing or corrupted system files using the recovery image. The only caveat with this approach is that if one or more system files in the local image are damaged, the SFC command won't work. In this scenario, you can use the "install.wim" image file with DISM to repair the image and then use the SFC tool to fix the setup without reinstalling the operating system.
