How to use DISM command tool to repair Windows 10 image

Windows 10 DISM and SFC repair
Windows 10 DISM and SFC repair (Image credit: Mauro Huculak)

On Windows 10, the Deployment Image Servicing and Management (DISM) tool is designed for administrators to prepare, modify, and repair system images, including Windows Recovery Environment, Windows Setup, and Windows PE (WinPE). However, you can also use it with the local recovery image to fix system problems.

When you try to fix a specific error, figure out why the device no longer boots correctly, or resolve performance problems, the System File Checker (SFC) tool can help 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.

In this how-to guide, I will walk you through the steps to use the DISM and SFC tools to bring a computer back from a broken to a healthy working state without reinstallation.

How to use DISM to repair image of Windows 10

The DISM command tool includes multiple features that can help to repair a system image, including "CheckHealth," "ScanHealth," and "RestoreHealth," and you want to use them in that order. Also, depending on the issue, you can use the "RestoreHealth" option to fix the locally available image using different source files.

Warning: The commands outlined in this guide are non-destructive, but since you will be making system changes, it is still recommended to create a temporary full backup before proceeding.

DISM command with CheckHealth option

The "CheckHealth" option with the DISM determines any corruptions inside the local image of Windows 10. However, this option does not perform any sort of repair.

To check the image of Windows 10 for issues with DISM, use these steps:

  1. Open Start.
  2. Search for Command Prompt, right-click the top result, and select the Run as administrator option.
  3. Type the following command to perform a quick check and press Enter: DISM /Online /Cleanup-Image /CheckHealth

(Image credit: Mauro Huculak)

Once you complete the steps, the Deployment Image Servicing and Management tool will run and verify any data corruption that may require fixing inside the local image.

DISM command with ScanHealth option

The "ScanHealth" option performs a more advanced scan to find out whether the image has any issues.

To check image problems with the ScanHealth option, use these steps:

  1. Open Start.
  2. Search for Command Prompt, right-click the top result, and select the Run as administrator option.
  3. Type the following command to perform an advanced DISM scan and press Enter: DISM /Online /Cleanup-Image /ScanHealth

(Image credit: Mauro Huculak)

After completing the steps, the scan may take some time to check whether the image needs any fixing.

DISM command with RestoreHealth option

If there are problems with the system image, use DISM with the "RestoreHealth" option to automatically scan and repair common issues.

To repair Windows 10 image problems with DISM, use these steps:

  1. Open Start.
  2. Search for Command Prompt, right-click the top result, and select the Run as administrator option.
  3. Type the following command to repair the Windows 10 image and press Enter: DISM /Online /Cleanup-Image /RestoreHealth
  • Quick note: It's a normal behavior if the command appears stuck. After a few moments, the process will be completed successfully.

(Image credit: Mauro Huculak)

Once you complete the steps, DISM will connect to the "Windows Update" servers to download and replace damaged files (as necessary).

Fix problems with DISM using install.wim image

The Deployment Image Servicing and Management commands typically don't cause issues. However, if the tool finds problems replacing the damaged files or the computer isn't connected to the internet, you'll have to provide another image using the "Source" option. Typically, you can use an "install.wim" or "install.esd" file from another device, install media, or ISO file. You only need to ensure the files match the version, edition, and language of the version you are trying to fix.

Download Windows 10 ISO file

If you need another file source, use the Media Creation Tool to download a fresh copy of Windows 10.

To download the ISO file of Windows 10, use these steps:

  1. Open this Microsoft support website.
  2. Click the Download Now button.
  3. Double-click the MediaCreationToolxxxx.exe file to launch the setup.
  4. Click the Accept button to agree to the terms.
  5. Select the "Create installation media (USB flash drive, DVD, or ISO file) for another PC" option.

(Image credit: Mauro Huculak)
  1. Click the Next button.
  2. Click the Next button again.

(Image credit: Mauro Huculak)
  1. Select the ISO file option.

(Image credit: Mauro Huculak)
  1. Click the Next button.
  2. Select the destination to store the Windows 10 ISO file.
  3. Click the Save button.
  4. Click the link to open the file location on File Explorer.

(Image credit: Mauro Huculak)
  1. Click the Finish button.
  2. Double-click the Windows.iso file to mount the image.
  3. Under the "This PC" section, confirm the drive letter for the mount point of the ISO file.

(Image credit: Mauro Huculak)

After you complete the steps, continue with the DISM tool using the "Source" option to repair the local image.

Fix Windows 10 recovery image

To run the Deployment Image Servicing and Management tool with an alternate source (install.wim) image, use these steps:

  1. Open Start.
  2. Search for Command Prompt, right-click the top result, and select the Run as administrator option.
  3. Type the following command to repair the Windows 10 image and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:G:\Sources\install.wim

In the command, replace "G" with the mount point drive letter in File Explorer.

(Image credit: Future)
  1. (Optional) Type the following command to limit the use of Windows Update and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:G\Sources\install.wim /LimitAccess
  2. (Optional) Type the following variant of the previous command to accomplish the same task and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:wim:G:\Sources\install.wim:1 /LimitAccess

In the command, change "G:\Sources," for the path to the "install.wim" file.

Once you complete the steps, the command will scan and repair the problems using the "install.wim" file you specified as the alternative source.

Fix problems with DISM using ESD image

In case you have an encrypted "install.esd" image, it's possible to use it to repair the damaged system files on Windows 10.

To use DISM with an "install.esd" image file as the source to repair Windows 10, use these steps:

  1. Open Start.
  2. Search for Command Prompt, right-click the top result, and select the Run as administrator option.
  3. Type the following command to repair the image with an "install.esd" file and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:C:\ESD\Windows\sources\install.esd

In the command, change "C:\ESD\Windows\sources" with the path to the location of the ".esd" file (if different).

(Image credit: Future)
  1. (Optional) Type the following command to limit the use of Windows Update and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:C:\ESD\Windows\sources\install.esd /LimitAccess
  2. (Optional) Type the following variant of the previous command to accomplish the same task and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:esd:C:\ESD\Windows\sources\install.esd:1 /LimitAccess
  3. (Optional) Type the following command to use an install.esd file located in another drive and press Enter: DISM /Online /Cleanup-Image /RestoreHealth /Source:E:\Sources\install.esd

In the command, replace "E:\Sources" with the path to the location of the "install.esd" file.

After you complete the steps, the tool will repair the damaged files using the files included in the "install.esd" image.

How to run SFC to repair problems on Windows 10

The previous set of steps is meant to repair issues with the system image, not the problems on Windows 10. After restoring the image to a healthy state, you can use the System File Checker command tool to repair the current setup of Windows 10.

To use the SFC command tool to repair system problems, use these steps:

  1. Open Start.
  2. Search for Command Prompt, right-click the top result, and select the Run as administrator option.
  3. Type the following command to repair the installation and press Enter: SFC /scannow
  • Quick tip: If errors are found, you may want to run the command around three times to ensure that everything was fixed correctly.

(Image credit: Mauro Huculak)

Once you complete the steps, the System File Checker tool will repair the system files using the local image files, and the log files will be saved on "%windir%/Logs/CBS/CBS.log" and "%windir%\Logs\DISM\dism.log," which you can view to get more details about the process.

You can use these instructions to learn more ways to use the SFC tool to fix problems on Windows 10.

More resources

For more helpful articles, coverage, and answers to common questions about Windows 10 and Windows 11, visit the following resources:

Mauro Huculak

Mauro Huculak is technical writer for WindowsCentral.com. His primary focus is to write comprehensive how-tos to help users get the most out of Windows 10 and its many related technologies. He has an IT background with professional certifications from Microsoft, Cisco, and CompTIA, and he's a recognized member of the Microsoft MVP community.