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Install or Uninstall Roles, Role Services, or Features

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Applies To: Windows Server 2012, Windows Server 2012 R2

In Windows Server® 2012 R2 and Windows Server® 2012, the Server Manager console and Windows PowerShell® cmdlets for Server Manager allow installation of roles and features to local or remote servers, or offline virtual hard disks (VHDs). You can install multiple roles and features on a single remote server or offline VHD in a single Add Roles and Features Wizard or Windows PowerShell session.

Important

Server Manager cannot be used to manage a newer release of the Windows Server operating system. Server Manager running on Windows Server 2012 or Windows 8 cannot be used to install roles, role services, and features on servers that are running Windows Server 2012 R2.

You must be logged on to a server as an administrator to install or uninstall roles, role services, and features. If you are logged on to the local computer with an account that does not have administrator rights on your target server, right-click the target server in the Servers tile, and then click Manage As to provide an account that has administrator rights. The server on which you want to mount an offline VHD must be added to Server Manager, and you must have Administrator rights on that server.

For more information about what roles, role services, and features are, see Roles, Role Services, and Features.

This topic contains the following sections.

Install roles, role services, and features by using the Add Roles and Features Wizard

In a single session in the Add Roles and Features Wizard, you can install roles, role services, and features on the local server, a remote server that has been added to Server Manager, or an offline VHD. For more information about how to add a server to Server Manager to manage, see Add Servers to Server Manager.

Note

If you are running Server Manager on Windows Server 2012 or Windows 8, you can use the Add Roles and Features Wizard to install roles and features only on servers and offline VHDs that are running Windows Server 2012. If you are running Server Manager on Windows Server 2012 R2 or Windows 8.1, you can use the Add Roles and Features Wizard to install roles and features only on servers and offline VHDs that are running Windows Server 2012 R2.

To install roles and features by using the Add Roles and Features Wizard

  1. If Server Manager is already open, go on to the next step. If Server Manager is not already open, open it by doing one of the following.

    • On the Windows desktop, start Server Manager by clicking Server Manager in the Windows taskbar.

    • On the Windows Start screen, click the Server Manager tile.

  2. On the Manage menu, click Add Roles and Features.

  3. On the Before you begin page, verify that your destination server and network environment are prepared for the role and feature you want to install. Click Next.

  4. On the Select installation type page, select Role-based or feature-based installation to install all parts of roles or features on a single server, or Remote Desktop Services installation to install either a virtual machine-based desktop infrastructure or a session-based desktop infrastructure for Remote Desktop Services. The Remote Desktop Services installation option distributes logical parts of the Remote Desktop Services role across different servers as needed by administrators. Click Next.

  5. On the Select destination server page, select a server from the server pool, or select an offline VHD. To select an offline VHD as your destination server, first select the server on which to mount the VHD, and then select the VHD file. For information about how to add servers to your server pool, see Add Servers to Server Manager. After you have selected the destination server, click Next.

    Note

    To install roles and features on offline VHDs, target VHDs must meet the following requirements. VHDs must be running the release of Windows Server that matches the version of Server Manager you are running. See the note at the start of Install roles, role services, and features by using the Add Roles and Features Wizard. VHDs cannot have more than one system volume or partition. The network shared folder in which the VHD file is stored must grant the following access rights to the computer (or local system) account of server that you have selected to mount the VHD. User-only account access is not sufficient. The share can grant Read and Write permissions to the Everyone group to allow access to the VHD, but for security reasons, this is not recommended. Read/Write access on the File Sharing dialog box. Full Control access on the Security tab , file or folder Properties dialog box.

  6. Select roles, select role services for the role if applicable, and then click Next to select features.

    As you proceed, the Add Roles and Features Wizard automatically informs you if conflicts were found on the destination server that can prevent selected roles or features from installation or normal operation. You are also prompted to add any roles, role services, or features that are required by the roles or features that you have selected.

    Additionally, if you plan to manage the role remotely, either from another server, or from a Windows client-based computer that is running Remote Server Administration Tools, you can opt not to install management tools and snap-ins for roles on the destination server. By default, in the Add Roles and Features Wizard, management tools are selected for installation.

  7. On the Confirm installation selections page, review your role, feature, and server selections. If you are ready to install, click Install.

    You can also export your selections to an XML-based configuration file that you can use for unattended installations with Windows PowerShell. To export the configuration you specified in this Add Roles and Features Wizard session, click Export configuration settings, and then save the XML file to a convenient location.

    The Specify an alternate source path command on the Confirm installation selections page lets you specify an alternate source path for the files that are required to install roles and features on the selected server. In Windows Server 2012, Features on Demand lets you reduce the amount of disk space used by the operating system, by removing role and feature files from servers that are exclusively managed remotely. If you have removed role and feature files from a server by using the Uninstall-WindowsFeature -Remove cmdlet, you can install roles and features on the server in the future by specifying an alternate source path, or a share on which required role and feature files are stored. The source path or file share must grant Read permissions either to the Everyone group (not recommended for security reasons), or to the computer account (DOMAIN\SERVERNAME$) of the destination server; granting user account access is not sufficient. For more information about Features on Demand, see Windows Server Installation Options.

    You can specify a WIM file as an alternate feature file source when you are installing roles, role services, and features on a running, physical server. The source path for a WIM file should be in the following format, with WIM as a prefix, and the index in which the feature files are located as a suffix: WIM:e:\sources\install.wim:4. However, you cannot use a WIM file directly as a source for installing roles, role services, and features to an offline VHD; you must either mount the offline VHD and point to its mount path for source files, or you must point to a folder that contains a copy of the contents of the WIM file.

  8. After you click Install, the Installation progress page displays installation progress, results, and messages such as warnings, failures, or post-installation configuration steps that are required for the roles or features that you installed. In Windows Server 2012 R2 and Windows Server 2012, you can close the Add Roles and Features Wizard while installation is still in progress, and view installation results or other messages in the Notifications area at the top of the Server Manager console. Click the Notifications flag icon to see more details about installations or other tasks that you are performing in Server Manager.

Install roles, role services, and features by using Windows PowerShell cmdlets

The Server Manager deployment cmdlets for Windows PowerShell function similarly to the GUI-based Add Roles and Features Wizard and Remove Roles and Features Wizard, with an important difference. In Windows PowerShell, unlike in the Add Roles and Features Wizard, management tools and snap-ins for a role are not included by default. To include management tools as part of a role installation, add the IncludeManagementTools parameter to the cmdlet. If you are installing roles and features on a server that is running the Server Core installation option of Windows Server 2012 R2 or Windows Server 2012, you can add a role’s management tools to an installation, but GUI-based management tools and snap-ins cannot be installed on servers that are running the Server Core installation option of Windows Server. Only command-line and Windows PowerShell management tools can be installed on the Server Core installation option.

To install roles and features by using the Install-WindowsFeature cmdlet

  1. Do one of the following to open a Windows PowerShell session with elevated user rights.

    Note

    If you are installing roles and features on a remote server, you do not need to run Windows PowerShell with elevated user rights.

    • On the Windows desktop, right-click Windows PowerShell on the taskbar, and then click Run as Administrator.

    • On the Windows Start screen, right-click the tile for Windows PowerShell, and then on the app bar, click Run as Administrator.

  2. Type Get-WindowsFeature and then press Enter to view a list of available and installed roles and features on the local server. If the local computer is not a server, or if you want information about a remote server, run Get-WindowsFeature -ComputerName <computer_name>, in which computer_name represents the name of a remote computer that is running Windows Server 2012 R2 or Windows Server 2012.The results of the cmdlet contain the command names of roles and features that you add to your cmdlet in step 4.

    Note

    In Windows PowerShell 3.0 and later releases of Windows PowerShell, there is no need to import the Server Manager cmdlet module into the Windows PowerShell session before running cmdlets that are part of the module. A module is automatically imported the first time you run a cmdlet that is part of the module. Also, neither Windows PowerShell cmdlets nor the feature names used with the cmdlets are case-sensitive.

  3. Type Get-Help Install-WindowsFeature, and then press Enter to view the syntax and accepted parameters for the Install-WindowsFeature cmdlet.

  4. Type the following, and then press Enter, where feature_name represents the command name of a role or feature that you want to install (obtained in step 2), and computer_name represents a remote computer on which you want to install roles and features. Separate multiple values for feature_name by using commas. The Restart parameter automatically restarts the destination server if required by the role or feature installation.

    Install-WindowsFeature –Name <feature_name> -ComputerName <computer_name> -Restart

    To install roles and features on an offline VHD, add both the ComputerName parameter and the VHD parameter. If you do not add the ComputerName parameter, the cmdlet assumes that the local computer is mounted to access the VHD. The ComputerName parameter contains the name of the server on which to mount the VHD, and the VHD parameter contains the path to the VHD file on the specified server.

    Note

    You must add the ComputerName parameter if you are running the cmdlet from a computer that is running Windows 8.1 or Windows 8. To install roles and features on offline VHDs, target VHDs must meet the following requirements. VHDs must be running the release of Windows Server that matches the version of Server Manager you are running. See the note at the start of Install roles, role services, and features by using the Add Roles and Features Wizard. VHDs cannot have more than one system volume or partition. The network shared folder in which the VHD file is stored must grant the following access rights to the computer (or local system) account of server that you have selected to mount the VHD. User-only account access is not sufficient. The share can grant Read and Write permissions to the Everyone group to allow access to the VHD, but for security reasons, this is not recommended. Read/Write access on the File Sharing dialog box. Full Control access on the Security tab , file or folder Properties dialog box.

    Install-WindowsFeature -Name <feature_name> –VHD <path> -ComputerName <computer_name> -Restart

    Example:  The following cmdlet installs the Active Directory Domain Services role and the Group Policy Management feature on a remote server, ContosoDC1. Management tools and snap-ins are added by using the IncludeManagementTools parameter, and the destination server is to be restarted automatically, if installation requires that the servers be restarted.

    Install-WindowsFeature –Name AD-Domain-Services,GPMC –ComputerName ContosoDC1 –IncludeManagementTools -Restart

  5. When installation is finished, verify installation by opening the All Servers page in Server Manager, selecting a server on which you installed roles and features, and viewing the Roles and Features tile on the page for the selected server. You can also run the Get-WindowsFeature cmdlet targeted at the selected server (Get-WindowsFeature -ComputerName <computer_name>) to view a list of roles and features that are installed on the server.

Remove roles, role services, and features by using the Remove Roles and Features Wizard

You must be logged on to a server as an administrator to uninstall roles, role services, and features. If you are logged on to the local computer with an account that does not have administrator rights on your uninstallation target server, right-click the target server in the Servers tile, and then click Manage As to provide an account that has administrator rights. The server on which you want to mount an offline VHD must be added to Server Manager, and you must have Administrator rights on that server.

To remove roles and features by using the Remove Roles and Features Wizard

  1. If Server Manager is already open, go on to the next step. If Server Manager is not already open, open it by doing one of the following.

    • On the Windows desktop, start Server Manager by clicking Server Manager in the Windows taskbar.

    • On the Windows Start screen, click the Server Manager tile.

  2. On the Manage menu, click Remove Roles and Features.

  3. On the Before you begin page, verify that you have prepared for removing roles or features from a server. Click Next.

  4. On the Select destination server page, select a server from the server pool, or select an offline VHD. To select an offline VHD, first select the server on which to mount the VHD, and then select the VHD file.

    Note

    The network shared folder in which the VHD file is stored must grant the following access rights to the computer (or local system) account of server that you have selected to mount the VHD. User-only account access is not sufficient. The share can grant Read and Write permissions to the Everyone group to allow access to the VHD, but for security reasons, this is not recommended. Read/Write access on the File Sharing dialog box. Full Control access on the Security tab , file or folder Properties dialog box.

    For information about how to add servers to your server pool, see Add Servers to Server Manager. After you have selected the destination server, click Next.

    Note

    You can use the Remove Roles and Features Wizard to remove roles and features from servers that are running the same release of Windows Server that supports the version of Server Manager that you are using. You cannot remove roles, role services, or features from servers that are running Windows Server 2012 R2, if you are running Server Manager on Windows Server 2012 or Windows 8. You cannot use the Remove Roles and Features Wizard to remove roles and features from servers that are running Windows Server 2008, Windows Server 2008 R2, or Windows Server 2003.

  5. Select roles, select role services for the role if applicable, and then click Next to select features.

    As you proceed, the Remove Roles and Features Wizard automatically prompts you to remove any roles, role services, or features that cannot run without the roles or features that you are removing.

    Additionally, you can opt to remove management tools and snap-ins for roles on the destination server. By default, in the Remove Roles and Features Wizard, management tools are selected for removal. You can leave management tools and snap-ins if you plan to use the selected server to manage the role on other remote servers.

  6. On the Confirm removal selections page, review your role, feature, and server selections. If you are ready to remove the roles or features, click Remove.

  7. After you click Remove, the Removal progress page displays removal progress, results, and messages such as warnings, failures, or post-removal configuration steps that are required, such as restarting the destination server. In Windows Server 2012 R2 and Windows Server 2012, you can close the Remove Roles and Features Wizard while removal is still in progress, and view removal results or other messages in the Notifications area at the top of the Server Manager console. Click the Notifications flag to see more details about removals or other tasks that you are performing in Server Manager.

Remove roles, role services, and features by using Windows PowerShell cmdlets

The Server Manager deployment cmdlets for Windows PowerShell function similarly to the GUI-based Remove Roles and Features Wizard, with an important difference. In Windows PowerShell, unlike in the Remove Roles and Features Wizard, management tools and snap-ins for a role are not removed by default. To remove management tools as part of a role removal, add the IncludeManagementTools parameter to the cmdlet. If you are uninstalling roles and features from a server that is running the Server Core installation option of Windows Server 2012 R2 or Windows Server 2012, this parameter removes command-line and Windows PowerShell management tools for the specified roles and features.

To remove roles and features by using the Uninstall-WindowsFeature cmdlet

  1. Do one of the following to open a Windows PowerShell session with elevated user rights.

    Note

    If you are uninstalling roles and features from a remote server, you do not need to run Windows PowerShell with elevated user rights.

    • On the Windows desktop, right-click Windows PowerShell on the taskbar, and then click Run as Administrator.

    • On the Windows Start screen, right-click the Windows PowerShell tile, and then on the app bar, click Run as Administrator.

  2. Type Get-WindowsFeature and then press Enter to view a list of available and installed roles and features on the local server. If the local computer is not a server, or if you want information about a remote server, run Get-WindowsFeature -ComputerName <computer_name>, in which computer_name represents the name of a remote computer that is running Windows Server 2012 R2 or Windows Server 2012.The results of the cmdlet contain the command names of roles and features that you add to your cmdlet in step 4.

    Note

    In Windows PowerShell 3.0 and later releases of Windows PowerShell, there is no need to import the Server Manager cmdlet module into the Windows PowerShell session before running cmdlets that are part of the module. A module is automatically imported the first time you run a cmdlet that is part of the module. Also, neither Windows PowerShell cmdlets nor the feature names used with the cmdlets are case-sensitive.

  3. Type Get-Help Uninstall-WindowsFeature, and then press Enter to view the syntax and accepted parameters for the Uninstall-WindowsFeature cmdlet.

  4. Type the following, and then press Enter, where feature_name represents the command name of a role or feature that you want to remove (obtained in step 2), and computer_name represents a remote computer from which you want to remove roles and features. Separate multiple values for feature_name by using commas. The Restart parameter automatically restarts destination servers if required by the role or feature removal.

    Uninstall-WindowsFeature –Name <feature_name> -ComputerName <computer_name> -Restart

    To remove roles and features from an offline VHD, add both the ComputerName parameter and the VHD parameter. If you do not add the ComputerName parameter, the cmdlet assumes that the local computer is mounted to access the VHD. The ComputerName parameter contains the name of the server on which to mount the VHD, and the VHD parameter contains the path to the VHD file on the specified server.

    Note

    You must add the ComputerName parameter if you are running the cmdlet from a computer that is running Windows 8.1 or Windows 8. The network shared folder in which the VHD file is stored must grant the following access rights to the computer (or local system) account of server that you have selected to mount the VHD. User-only account access is not sufficient. The share can grant Read and Write permissions to the Everyone group to allow access to the VHD, but for security reasons, this is not recommended. Read/Write access on the File Sharing dialog box. Full Control access on the Security tab , file or folder Properties dialog box.

    Uninstall-WindowsFeature –Name <feature_name> –VHD <path> -ComputerName <computer_name> -Restart

    Example:  The following cmdlet removes the Active Directory Domain Services role and the Group Policy Management feature from a remote server, ContosoDC1. Management tools and snap-ins are also removed, and the destination server is to be restarted automatically, if removal requires that the servers be restarted.

    Uninstall-WindowsFeature –Name AD-Domain-Services,GPMC –ComputerName ContosoDC1 –IncludeManagementTools -Restart

  5. When removal is finished, verify that the roles and features are removed by opening the All Servers page in Server Manager, selecting the server from which you removed roles and features, and viewing the Roles and Features tile on the page for the selected server. You can also run the Get-WindowsFeature cmdlet targeted at the selected server (Get-WindowsFeature -ComputerName <computer_name>) to view a list of roles and features that are installed on the server.

Install roles and features on multiple servers by running a Windows PowerShell script

Although you cannot use the Add Roles and Features Wizard to install roles, role services, and features on more than one target server in a single wizard session, you can use a Windows PowerShell script to install roles, role services, and features on multiple target servers that you are managing by using Server Manager. The script that you use to perform batch deployment, as this process is called, points to an XML configuration file that you can create easily by using the Add Roles and Features Wizard, and clicking Export configuration settings after advancing through the wizard to the Confirm installation selections page of the Add Roles and Features Wizard.

Important

All target servers that are specified in your script must be running the release of Windows Server that matches the version of Server Manager you are running on the local computer. For example, if you are running Server Manager on Windows® 8, you can install roles, role services, and features on servers that are running Windows Server 2012. If GUI-based management tools are added to the installation, the installation process automatically converts target servers that are running the Server Core installation option of Windows Server to the full installation option (server with a full GUI). The script provided in this section is an example of how batch deployment can be performed by using the Install-WindowsFeature cmdlet and a Windows PowerShell script. There are other possible scripts and methods of performing batch deployment to multiple servers. To search for or provide other scripts for deploying roles and features, search the Script Center Repository.

To install roles and features on multiple servers

  1. If you have not already done so, create an XML configuration file that contains the roles, role services, and features that you want installed on multiple servers. You can create this configuration file by running the Add Roles and Features Wizard, selecting roles, role services, and features that you want, and clicking Export configuration settings after advancing through the wizard to the Confirm installation selections page. Save the configuration file to a convenient location. You do not need to click Install or complete the wizard if you are running it only to create a configuration file.

  2. Do one of the following to open a Windows PowerShell session with elevated user rights.

    • On the Windows desktop, right-click Windows PowerShell on the taskbar, and then click Run as Administrator.

    • On the Windows Start screen, right-click the Windows PowerShell tile, and then on the app bar, click Run as Administrator.

  3. Copy and paste the following script into your Windows PowerShell session.

    function Invoke-WindowsFeatureBatchDeployment {
    param (
        [parameter(mandatory)]
        [string[]] $ComputerNames,
        [parameter(mandatory)]
        [string] $ConfigurationFilePath
    )

    # Deploy the features on multiple computers simultaneously.
    $jobs = @()
    foreach($ComputerName in $ComputerNames) {
        $jobs += Start-Job -Command {
            Install-WindowsFeature -ConfigurationFilePath $using:ConfigurationFilePath -ComputerName $using:ComputerName -Restart
        }
    }

    Receive-Job -Job $jobs -Wait | Select-Object Success, RestartNeeded, ExitCode, FeatureResult
}

    Target servers are automatically restarted if required by the roles and features that you select.

  4. Run the function by doing the following.

    1. Create a variable in which to store the names of your target computers, separated by commas. In the following example, the variable $ServerNames stores the names of target servers Contoso_01 and Contoso_02. Press Enter.

      # Sample Invocation
$ServerNames = 'Contoso_01', 'Contoso_02'
Invoke-WindowsFeatureBatchDeployment -ComputerNames $ServerNames -ConfigurationFilePath C:\Users\sampleuser\Desktop\DeploymentConfigTemplate.xml

    2. To run the function, type the following, and then press Enter, where $ServerNames is an example of the variable that you created in the preceding step, and C:\Users\Sampleuser\Desktop\DeploymentConfigTemplate.xml is an example of a path to the configuration file that you created in step 1.

      Invoke-WindowsFeatureBatchDeployment –ComputerNames $ServerNames –ConfigurationFilePath C:\Users\Sampleuser\Desktop\DeploymentConfigTemplate.xml

  5. When installation is finished, verify installation by opening the All Servers page in Server Manager, selecting a server on which you installed roles and features, and viewing the Roles and Features tile on the page for the selected server. You can also run the Get-WindowsFeature cmdlet targeted at a specific server (Get-WindowsFeature -ComputerName <computer_name>) to view a list of roles and features that are installed on the server.

Install .NET Framework 3.5 and other features on-demand

Starting with Windows Server 2012 and Windows 8, the feature files for .NET Framework 3.5 (which includes .NET Framework 2.0 and .NET Framework 3.0) are not available on the local computer by default. The files have been removed. Files for features that have been removed in a Features on Demand configuration, along with feature files for .NET Framework 3.5, are available through Windows Update. By default, if feature files are not available on the destination server that is running Windows Server 2012 R2 or Windows Server 2012, the installation process searches for the missing files by connecting to Windows Update. You can override the default behavior by configuring a Group Policy setting or specifying an alternate source path during installation, whether you are installing by using the Add Roles and Features Wizard GUI or a command line.

You can install .NET Framework 3.5 by doing one of the following.

Configure alternate sources for feature files in Group Policy for .NET Framework 3.5 or other features, if feature files are not found on the local computer.

Important

When you are installing feature files from a remote source, the source path or file share must grant Read permissions either to the Everyone group (not recommended for security reasons), or to the computer (local system) account of the destination server; granting user account access is not sufficient. Servers that are in workgroups cannot access external file shares, even if the computer account for the workgroup server has Read permissions on the external share. Alternate source locations that work for workgroup servers include installation media, Windows Update, and VHD or WIM files that are stored on the local workgroup server. You can specify a WIM file as an alternate feature file source when you are installing roles, role services, and features on a running, physical server. The source path for a WIM file should be in the following format, with WIM as a prefix, and the index in which the feature files are located as a suffix: WIM:e:\sources\install.wim:4. However, you cannot use a WIM file directly as a source for installing roles, role services, and features to an offline VHD; you must either mount the offline VHD and point to its mount path for source files, or you must point to a folder that contains a copy of the contents of the WIM file.

To install .NET Framework 3.5 by running the Install-WindowsFeature cmdlet

  1. Do one of the following to open a Windows PowerShell session with elevated user rights.

    Note

    If you are installing roles and features from a remote server, you do not need to run Windows PowerShell with elevated user rights.

    • On the Windows desktop, right-click Windows PowerShell on the taskbar, and then click Run as Administrator.

    • On the Windows Start screen, right-click the Windows PowerShell tile, and then on the app bar, click Run as Administrator.

    • On a server that is running the Server Core installation option of Windows Server 2012 R2 or Windows Server 2012, type powershell into a command prompt, and then press Enter.

  2. Type the following command, and then press Enter. In the following example, the source files are located in a side-by-side store (abbreviated to as SxS) in installation media on drive D.

    Install-WindowsFeature NET-Framework-Core –Source D:\Sources\SxS

    If you want the command to use Windows Update as a source for missing feature files, or if a default source has already been configured by using Group Policy, you do not need to add the Source parameter unless you want to specify a different source.

To install .NET Framework 3.5 by using the Add Roles and Features Wizard

  1. On the Manage menu in Server Manager, click Add Roles and Features.

  2. Select a destination server that is running Windows Server 2012 R2 orWindows Server 2012.

  3. On the Select features page of the Add Roles and Features Wizard, select .NET Framework 3.5.

  4. If the local computer is allowed to do so by Group Policy settings, the installation process attempts to get missing feature files by using Windows Update. Click Install; you do not need to go on to the next step.

    If Group Policy settings do not allow this, or you want to use another source for the .NET Framework 3.5 feature files, on the Confirm installation selections page of the wizard, click Specify an alternate source path.

  5. Provide a path to a side-by-side store (referred to as SxS) in installation media, or to a WIM file. In the following example, installation media is located on drive D.

    D:\Sources\SxS\

    To specify a WIM file, add a WIM: prefix, and add the index of the image to use in the WIM file as a suffix, as shown in the following example.

    WIM:\\server_name\share\install.wim:3

  6. Click OK, and then click Install.

To install .NET Framework 3.5 by using DISM

  1. Do one of the following to open a Windows PowerShell session with elevated user rights.

    Note

    If you are installing roles and features from a remote server, you do not need to run Windows PowerShell with elevated user rights.

    • On the Windows desktop, right-click Windows PowerShell on the taskbar, and then click Run as Administrator.

    • On the Windows Start screen, right-click the Windows PowerShell tile, and then on the app bar, click Run as Administrator.

    • On a server that is running the Server Core installation option, type powershell into a command prompt, and then press Enter.

  2. Run one of the following DISM commands.

    • If the computer has access to Windows Update, or a default source file location has already been configured in Group Policy, run the following command.

      DISM /Online /Enable-Feature /FeatureName:NetFx3 /All

    • If the computer has access to installation media, run a command similar to the following. In the following example, the operating system installation media is located on drive D. The LimitAccess parameter prevents the command from attempting to contact Windows Update or a server that is running WSUS.

      DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:d:\sources\sxs

    Note

    The DISM command is case-sensitive.

Configure alternate sources for feature files in Group Policy

The Group Policy setting described in this section specifies authorized source locations for .NET Framework 3.5 files, and other feature files that have been removed as part of a Features on Demand configuration. The policy setting Specify settings for optional component installation and component repair is located in the Computer Configuration\Administrative Templates\System folder in the Group Policy Management Console or Local Group Policy Editor.

Note

You must be a member of the Administrators group to change Group Policy settings on the local computer. If Group Policy settings for the computer you want to manage are controlled at the domain level, you must be a member of the Domain Administrators group to change Group Policy settings.

To configure a default alternate source path in Group Policy

  1. In Local Group Policy Editor or Group Policy Management Console, open the following policy setting.

    Computer Configuration\Administrative Templates\System\Specify settings for optional component installation and component repair

  2. Select Enabled to enable the policy setting, if it is not already enabled.

  3. In the Alternate source file path text box in the Options area, specify a fully qualified path to a shared folder or a WIM file. To specify a WIM file as an alternate source file location, add the prefix WIM: to the path, and add the index of the image to use in the WIM file as a suffix. The following are examples of values that you can specify.

    • Path to a shared folder: **\\server_name\share\**folder_name

    • Path to a WIM file, in which 3 represents the index of the image in which the feature files are found: WIM:\\server_name\share\install.wim:3

  4. If you do not want computers that are controlled by this policy setting to search for missing feature files in Windows Update, select Never attempt to download payload from Windows Update.

  5. If the computers that are controlled by this policy setting typically receive updates through WSUS, but you prefer to go through Windows Update and not WSUS to find missing feature files, select Contact Windows Update directly to download repair content instead of Windows Server Update Services (WSUS).

  6. Click OK when you are finished changing this policy setting, and then close the Group Policy editor.

See Also

Windows Server Installation Options Microsoft .NET Framework 3.5 Deployment Considerations How to Enable or Disable Windows Features