Mounts a Windows image in a WIM or VHD file to a directory on the local computer.
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Last verified: 2026-10-26
Microsoft Dism reference: Mounts a Windows image in a WIM or VHD file to a directory on the local computer. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Use an account with the target resource permissions documented for Mount-WindowsImage. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Supported environments
Windows / Dism · Windows Server 2025 documentation; feature/module prerequisites apply
Parameters
-CheckIntegrity
Detects and tracks .wim file corruption when used with the Dismount-WindowsImage or Save-WindowsImage cmdlet. *CheckIntegrity* stops the operation if DISM detects that the .wim file is corrupted when used with the Mount-WindowsImage cmdlet. The *CheckIntegrity* parameter does not apply to virtual hard disk (VHD) files.
-ImagePath (required)
Specifies the location of the WIM or VHD file containing the Windows image you want to mount.
-Index (required)
Specifies the index number of a Windows image in a WIM or VHD file. For a VHD file, the *Index* must be 1.
-LogLevel
Specifies the maximum output level shown in the logs. The default log level is 3. The accepted values are as follows: - 1 = Errors only - 2 = Errors and warnings - 3 = Errors, warnings, and information - 4 = All of the information listed previously, plus debug output
-LogPath
Specifies the full path and file name to log to. If not set, the default is %WINDIR%\Logs\Dism\dism.log. In Windows PE, the default directory is the RAMDISK scratch space which can be as low as 32 MB. The log file will automatically be archived. The archived log file will be saved with .bak appended to the file name and a new log file will be generated. Each time the log file is archived the .bak file will be overwritten. When using a network share that is not joined to a domain, use the net use command together with domain credentials to set access permissions before you set the log path for the DISM log.
-Name (required)
Specifies the name of an image in a WIM or VHD file.
-Optimize
Reduces the amount of time it takes to initially mount the image. However, processes that are ordinarily performed during a mount will instead be completed the first time that you access a directory. As a result, there may be an increase in the time that is required to access a directory for the first time after mounting an image using the *Optimize* parameter.
-Path (required)
Specifies the location on your local computer where you want to mount the Windows image.
-ReadOnly
Specifies that the image should be mounted with read-only permissions.
-Remount (required)
Mounts an image in a WIM or VHD file that was already mounted at the specified *Path*, but has become inaccessible for servicing.
-ScratchDirectory
Specifies a temporary directory that will be used when extracting files for use during servicing. The directory must exist locally. If not specified, the \Windows\%Temp% directory will be used, with a subdirectory name of a randomly generated hexadecimal value for each run of DISM. Items in the scratch directory are deleted after each operation. You should not use a network share location as a scratch directory to expand a package (.cab or .msu file) for installation. The directory used for extracting files for temporary usage during servicing should be a local directory.
-SupportEa
Applies an image with extended attributes.
Prerequisites
Windows with the Dism module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
Security considerations
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
Examples
Example 1: Mount an image from the install.vhd file to a directory
This command mounts the Windows image contained in the install.vhd file to the c:\offline directory. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.