Service Windows 7 Image Using DISM

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Before you start

Objectives: learn how to use DISM to service existing Windows 7 image.

Prerequisites: you have to have WAIK installed. You also have to know what is DISM.

Key terms: image, mount, dism, command, feature, driver, parameter, folder


Image

For the purpose of this demo, we will be working on image which we will get from the Windows 7 installation DVD. In our case we have copied install.wim image from the Windows 7 installation DVD ([DVD drive]:\sources\install.wim) to the C:\images\ folder. In that folder we have also created the ‘mount‘ folder which we will use to mount our image.

Folders

Image 204.1 – Folders

Next we need to open Deployment Tools Command Prompt with elevated privileges. To do that go toStart > All Programs > Microsoft Windows AIK > Deployment Tools Command Prompt (Deployment Tools Command Prompt comes with WAIK for Windows 7).

Mounting

Next we will mount our image. To do that we will enter the following command: dism /mount-wim /wimfile:c:\images\install.wim /index:5 /mountdir:c:\images\mount. ‘DISM’ means that we are using DISM to mount our image. /mount-wim parameter means that we want to mount existing image. With/wimfile parameter we specify the location of our image. With /index parameter we specify which edition we want to mount (Ultimate in our case). With /mountdir parameter we specify where do we want to mount our image.

Mounting Progress

Image 204.2 – Mounting in Progress

Working with Features

Once our image is mounted we will check features that are available on our mounted image. To do that we will use the following command: dism /image:c:\images\mount /get-features. The /imageparameter is used to specify the location of our mounted image. The /get-features parameter is used to check for available features.

Available Features

Image 204.3 – Available Features List

Different editions of Windows will have different features available. Among other things we have a feature that is called Minesweeper. This is a game that is available for free in Windows and it is currently enabled. Let’s gather more information about that feature. We will use the following command: dism /image:c:\images\mount /get-featureinfo /featurename:Minesweeper. Remember that feature names are case-sensitive.

Minesweeper Feature

Image 204.4 – Minesweeper Feature

Now we will disable that feature. To do that we will enter the following command: dism /image:c:\images\mount /disable-feature /featurename:Minesweeper.

Feature Disabled

Image 205.5 – Feature Disabled

If we want to enable some feature we can use the /enable-feature option. In our case Minesweeper is disabled on our mounted image so it will not be available by default once we install our Windows 7 Ultimate edition. We can run the dism /image:c:\images\mount /get-features command to check for available features again. Notice that the status of the Minesweeper feature is now ‘Disable Pending’.

Minesweeper Status

Image 204.6 – Feature Status

Changing the Time Zone

We will change our time zone to the Central European Standard Time. To set the time zone we will use the following command: dism /image:c:\images\mount /set-timezone:”Central European Standard Time”. For a complete list of time-zone strings see the Unattend Setup Reference or use the tzutilcommand with the ‘/l’ parameter on a running Windows 7 machine.

tzutil

Image 204.7 – TZUTIL

Time Zone Changed

Image 204.8 – Time Zone Changed

Adding Drivers

We have added a new folder called ‘addons’ to the C:\images\ folder. Here we have copied the driver that we want to add to the image driver store. In our case we want to add drivers for Samsung ML1640 printer.

Samsung Drivers

Image 204.9 – Samsung Drivers

To add our driver we will run the following command: dism /image:c:\images\mount /add-driver:”C:\images\addons\SamsungML1640\ssp2m.inf”. Notice when specifying the path to our drivers, we also specified the Setup Information file (.inf extension). In our case that file is ssp2m.inf.

Driver Installed

Image 204.10 – Driver Installed

Driver content has been copied to the driver store successfully. If we enter the command dism /image:c:\images\mount /get-drivers, we can see all third party drivers installed in our image.

Drivers List

Image 204.11 – List of Drivers

Notice that our new driver now has a published name: oem1.inf. Below that we can see the original file name (sspm.inf), class name (Printer), provider name (Samsung), date and version.

Unmounting Image

We have made all changes that we wanted so we are ready to unmount our image. To do that we will enter the following command: dism /unmount-wim /mountdir:c:\images\mount /commit. Be sure to exit folder that is used for mounting in Explorer.

Unmounting Successfull

Image 204.12 – Unmounting Successfull

Notice the /commit parameter. It is used to save all changes that we made to our image. If we don’t want to save changes can use the /discard parameter.

Remember

Using DISM we can service existing images. Before we can do anything we have to mount our image. After that we can work with features, drivers, etc. DIMS commands are not case sensitive, but feature names are.

Commands that are mentioned in this article
  • dism /mount-wim /wimfile:c:\images\install.wim /index:5 /mountdir:c:\images\mount – mount ‘install.wim’ image which is located in ‘c:\images\’ folder, edition with index number 5 (which is Ultimate), to the ‘c:\images\mount’ folder
  • dism /image:c:\images\mount /get-features – check features on mounted image located in ‘c:\images\mount’ folder
  • dism /image:c:\images\mount /get-featureinfo /featurename:Minesweeper – get detailed information about ‘Minesweeper’ feature on mounted image located in ‘c:\images\mount’ folder
  • dism /image:c:\images\mount /disable-feature /featurename:Minesweeper – disable ‘Minesweeper’ feature on mounted image which is located in ‘c:\images\mount’ folder
  • dism /image:c:\images\mount /set-timezone:”Central European Standard Time” – change the time zone of the mounted image located in ‘c:\images\mount\’ folder to the ‘Central European Standard Time’
  • tzutil /l – see a complete list of time-zone strings (enter in Command Prompt)
  • dism /image:c:\images\mount /add-driver:”C:\images\addons\SamsungML1640\ssp2m.inf” – add ‘ssp2m.inf’ driver to the mounted image located in ‘c:\images\mount’ folder
  • dism /image:c:\images\mount /get-drivers – see all third party drivers available on mounted image
  • dism /unmount-wim /mountdir:c:\images\mount /commit – unmount image and commit all changes
Paths that are mentioned in this article
  • [DVD drive]:\sources\install.wim – image location on the Windows 7 installation DVD
  • C:\images\ – folder in which we have copied install.wim image
  • C:\images\mount\ – folder which we used to mount our image
Author: cicnavi