Repair a Windows Image

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Repair a Windows Image

Windows 8

Updated: October 20, 2013

Applies To: Windows 8, Windows 8.1, Windows Server 2012, Windows Server 2012 R2

If a Windows image becomes unserviceable, you can use the Deployment Imaging and Servicing Management (DISM) tool to update the files and correct the problem. You can use DISM to repair an offline Windows image in a WIM or VHD file, or an online Windows image. An online Windows image will also attempt to repair itself if it becomes unserviceable. The repair source for this operation is the same source that is used for Features on Demand and is determined by Group Policy settings. For more information, see Configure a Windows Repair Source. When you use the DISM tool to repair an online or offline image, you can use the /Source argument with the /RestoreHealth argument to specify additional repair source locations to use to search for the required files.

The DISM /ScanHealth, /CheckHealth, and /RestoreHealth arguments can only be used when servicing Windows® 8 or Windows Server® 2012 images.

To check if an image is repairable

Scan the image to check for corruption. This operation will take several minutes. For example, at a command prompt, type the following command: (there is a space before each of the /)

Dism /online /Cleanup-Image /ScanHealth

Check the image to see whether any corruption has been detected. For example, at a command prompt, type (there is a space before each of the /):

Dism /Online /Cleanup-Image /Checkhealth

To repair an image

Use the /RestoreHaelth argument to repair the image. For example, to repair an offline image using a mounted image as a repair source, at a command prompt, type the following command (there is a space before each of the /)

Dism /Image:c:\offline /Cleanup-image /RestoreHealth /Source:c:\test\mount\windows

To repair an image type the following (there is a space before each of the /)

Dism /Online /Cleanup-Image /RetoreHealth

To repair an online image using some of your own sources instead of Windows Update, type (there is a space before each of the /)

Dism /Online /Cleanup-Image /RestoreHealth /Source:c:\test\mount\windows /LimitAccess

If you do not specify a /Source for the repair files, the default location for Features onDemand is used, Formore information, see Configure a Windows Repair Source. If you specify more than one /Source, the files are copied from the first location where they are found and the rest of the locations are ignored. You can use /LimitAccess to prevent the DISM tool from using Windows Update as a repair source or as a backup repair source for online images.

Contact Email: Support@upgradenrepair.com

DISCLAIMER:UpgradeNRepair (UNR), the owner, and any representatives of UpgradeNRepair (UNR) is not liable for any data loss or hardware failure because of the following procedure. The Information provided is a guide to assist the customer with an issue with their system or software. The procedures offered here may or may not harm your files. Even procedures that are not designed to harm files, can harm files, depending on the issue with the system. Because there is too many unknowns, UpgradeNRepair is unable to guarantee the safety of the files. Customer is responsible for their data and their actions. Before following the directions on this page and the pages these links are linked to, any data the customer does not want to lose will have to be saved. Saving the data is the sole responsibility of the customer. Some or all of the following procedures or information may not apply to your situation.