Repair-WindowsImage

Module:

DISM

Repairs a Windows image in a WIM or VHD file.

Syntax

Repair-WindowsImage
      [-CheckHealth]
      [-ScanHealth]
      [-RestoreHealth]
      [-StartComponentCleanup]
      [-LimitAccess]
      [-ResetBase]
      [-Defer]
      [-Source <String[]>]
      [-NoRestart]
      -Path <String>
      [-WindowsDirectory <String>]
      [-SystemDrive <String>]
      [-LogPath <String>]
      [-ScratchDirectory <String>]
      [-LogLevel <LogLevel>]
      [<CommonParameters>]

Repair-WindowsImage
      [-CheckHealth]
      [-ScanHealth]
      [-RestoreHealth]
      [-StartComponentCleanup]
      [-LimitAccess]
      [-ResetBase]
      [-Defer]
      [-Source <String[]>]
      [-NoRestart]
      [-Online]
      [-WindowsDirectory <String>]
      [-SystemDrive <String>]
      [-LogPath <String>]
      [-ScratchDirectory <String>]
      [-LogLevel <LogLevel>]
      [<CommonParameters>]

Description

The Repair-WindowsImage cmdlet repairs a Windows image in a WIM or VHD file.

Use the Online parameter to specify the running operating system on your local computer, or use the Path parameter to specify the location of a mounted Windows image.

The LimitAccess parameter prevents access to Windows Update (WU) as a Source for repairing online images.

The CheckHealth parameter checks whether the image has been flagged as corrupted by a failed process and whether the corruption can be repaired.

The ScanHealth parameter scans the image for component store corruption. This operation will take several minutes.

The RestoreHealth parameter scans the image for component store corruption, and then performs repair operations automatically. This operation will take several minutes.

The Source parameter specifies the location of known good versions of files that can be used for the repair, such as a path to the root directory of a mounted image.

CheckHealth, ScanHealth, RestoreHealth, Source, and LimitAccess can only be used when servicing images that are running at least Windows 8 or Windows Server 2012.

Examples

Example 1: Scan an image for corruption

PS C:\> Repair-WindowsImage -Path "C:\offline\Mount" -ScanHealth

This command scans the specified image for component store corruption.

Example 2: Check an image for corruption and whether to repair the image

PS C:\> Repair-WindowsImage -Path "C:\offline\Mount" -CheckHealth

This command checks whether the specified image has been flagged as corrupted by a failed process and whether the corruption can be repaired.

Example 3: Check an image for corruption and repairs the image

PS C:\> Repair-WindowsImage -Online -RestoreHealth -Source "C:\Mounted\VHD\Windows\WinSxS", "C:\Windows\TEMP" -LimitAccess

This command scans the specified image for component store corruption, and then performs repair operations automatically.

Parameters

-CheckHealth

Checks whether the image has been flagged as corrupted by a failed process and whether the corruption can be repaired.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-Defer

Defers cleanup operations until the next automatic maintenance.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-LimitAccess

Prevents DISM from contacting Windows Update (WU) when searching for the source files to repair an online image.

LimitAccess can only be used when servicing images that are running at least Windows 8, Windows Server 2012, or Windows Preinstallation Environment (Windows PE) 4.0.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-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

Type:	LogLevel
Aliases:	LL
Accepted values:	Errors, Warnings, WarningsInfo
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-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.

Type:	String
Aliases:	LP
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-NoRestart

Suppresses reboot. If a reboot is not required, this command does nothing. This option will keep the application from prompting for a restart or keep it from restarting automatically.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-Online

Specifies that the action is to be taken on the operating system that is currently running on the local computer.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	True
Accept pipeline input:	True
Accept wildcard characters:	False

-Path

Specifies the full path to the root directory of the offline Windows image that you will service. If the directory named Windows is not a subdirectory of the root directory, WindowsDirectory must be specified.

Type:	String
Position:	Named
Default value:	None
Required:	True
Accept pipeline input:	True
Accept wildcard characters:	False

-ResetBase

Resets the base of superseded components to further reduce the component store size.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-RestoreHealth

Scans the image for component store corruption, and then performs repair operations automatically. This operation will take several minutes.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-ScanHealth

Scans the image for component store corruption. This operation will take several minutes.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-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.

Type:	String
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-Source

Specifies the location of the files that are required to repair an image. You can specify the Windows directory of a mounted image or a running Windows installation that is shared on the network.

If you specify multiple Source arguments, the files are gathered from the first location where they are found and the rest of the locations are ignored. Separate source locations with a comma.

If you do not specify a Source, the default location set by Group Policy is used. Windows Update (WU) is also used for online images.

Source can only be used when servicing images that are running at least Windows 8 or Windows Server 2012.

Type:	String[]
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-StartComponentCleanup

Cleans up superseded components to reduce the size of the component store.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-SystemDrive

Specifies the path to the location of the BootMgr files. This is necessary only when the BootMgr files are located on a partition other than the one that you are running the command from. Use -SystemDrive to service an installed Windows image from a Windows PE environment.

Type:	String
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

-WindowsDirectory

Specifies the path to the Windows directory relative to the image path. This cannot be the full path to the Windows directory; it should be a relative path. If not specified, the default is the Windows directory in the root of the offline image directory.

Type:	String
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False

Inputs

String[]

Microsoft.Dism.Commands.ImageObject

Microsoft.Dism.Commands.ImageInfoObject

Microsoft.Dism.Commands.MountedImageInfoObject

Outputs

Microsoft.Dism.Commands.ImageObjectWithState

Related Links

• Mount-WindowsImage
• Dismount-WindowsImage
• Get-WindowsImage
• Save-WindowsImage