Fix Error Code 0x800F0906 & 0x800F081F Windows 8 / 8.1

Fix .NET Framework 3.5 Installation Error: 0x800F0906 & 0x800F081F


Resolutions for Error code 0x800F0906

This error code occurs because the computer cannot download the required files from Windows Update.

Method 1: Check your internet connection:

This behavior can be caused by network, proxy, or firewall configurations or by network, proxy, or firewall failures. To resolve this problem, try to connect to the  Microsoft Update  website.

If you cannot access this website, check your Internet connection, or contact the network administrator to determine whether there is a configuration that blocks access to the website.


Method 2: Configure the Group Policy setting:

This behavior can also be caused by a system administrator who configures the computer to use Windows Server Update Services (WSUS) instead of the Microsoft Windows Update server for servicing. In this case, contact your system administrator and request that they enable the Specify settings for optional component installation and component repair Group Policy setting and configure the Alternate source file path value or select the Contact Windows Update directly to download repair content instead of Windows Server Update Services (WSUS) option.

To configure the Group Policy setting, follow these steps:
  1. Start the Local Group Policy Editor or Group Policy Management Console.

    Windows 8 and Windows Server 2012: Point to the upper-right corner of the screen, click Search, type group policy, click Settings, and then click Edit group policy.

    Start Group Policy in Windows 8


    Windows 8.1 and Windows Server 2012 R2: Point to the upper-right corner of the screen, click Search, type group policy, and then click Edit group policy.

    Open group policy in Windows 8.1
  2. Expand Computer Configuration, expand Administrative Templates, and then select System. The screen shot for this step is listed below.

    The screen shot for this step
  3. Open the Specify settings for optional component installation and component repair Group Policy setting, and then select Enabled. The screen shot for this step is listed below.
    The screen shot for this step
  4. If you want to specify an alternative source file, in the Alternate source file path box, specify a fully qualified path of a shared folder that contains the contents of the \sources\sxs folder from the installation media.
    Example of a shared folder path:   \\server_name\share\Win8sxs

    Or, specify a WIM file. To specify a WIM file as an alternative source file location, add the prefix WIM: to the path, and then add the index of the image that you want to use in the WIM file as a suffix.
    Example of a WIM file path: WIM:\\server_name\share\install.wim:3
    Note
    In this example, 3 represents the index of the image in which the feature files are found.
  5. If it is applicable to do this, select the Contact Windows Update directly to download repair content instead of Windows Server Update Services (WSUS) check box.
  6. Tap or click OK.
  7. At an elevated command prompt, type the following command, and then press Enter to apply the policy immediately:
    gpupdate /force


Method 3: Use Windows installation media

You can use the Windows installation media as the file source when you enable the .NET

Framework 3.5 feature. To do this, follow these steps:

  1. Insert the Windows installation media.
  2. At an elevated command prompt, run the following command:
    Dism /online /enable-feature /featurename:NetFx3 /All /Source::\sources\sxs /LimitAccess
    Note In this command, is a placeholder for the drive letter for the DVD drive or for the Windows 8 installation media. For example, you run the following command:
    Dism /online /enable-feature /featurename:NetFx3 /All /Source:D:\sources\sxs /LimitAccess


Method 4: Alternative steps for Windows Server 2012 and for Windows Server 2012 R2

In Windows Server 2012 and Windows Server 2012 R2, you can also specify an alternative source by using Windows PowerShell cmdlts or by using the Add Roles and Features Wizard.

To use Windows PowerShell, follow these steps:
  1. Insert the Windows installation media.
  2. In an elevated Windows PowerShell command window, run the following command:
    Install-WindowsFeature –name NET-Framework-Core –source :\sources\sxs
    Note In this command, is a placeholder for the drive letter for the DVD drive or for the Windows installation media. For example, you run the following command:
    Install-WindowsFeature –name NET-Framework-Core –source D:\sources\sxs
To use the Add Roles and Features Wizard, follow these steps:
  1. Insert the Windows installation media.
  2. Start the Add Roles and Features Wizard.
  3. On the Select features page, select the .Net Framework 3.5 Features check box, and then click Next.
  4. On the Confirm installation selections page, click the Specify an alternate source path link. The screen shot for this step is listed below.
    image
  5. On the Specify Alternate Source Path page, type the path of the SxS folder as a local path or as a network share path. The screen shot for this step is listed below.
    imageimage

  6. Click OK.
  7. Click Install to finish the wizard.


    OR

    Resolution for error code 0x800F081F:

    This error code can occur when an alternative installation source is specified and one of the following conditions is true:
    • The location that is specified by the path does not contain the files that are required to install the feature.
    • The user who tries to install the feature does not have at least READ access to the location and to the files.
    • The set of installation files is corrupted, incomplete, or invalid for the version of Windows that you are running.
    To resolve this problem, make sure that the full path of the source is correct (x:\sources\sxs) and that you have at least Read access to the location. To do this, try to access the source directly from the affected computer. Verify that the installation source contains a valid and complete set of files. If the problem persists, try to use a different installation source.


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