How to fix
.NET Framework Installation error 0x800F0906
on Windows

Hello. I tried to install the .NET Framework but I received the 0x800F0906 error. How do I fix this?

The .NET Framework[ref en-1] is a Microsoft software development platform that is required to run many applications and services on Windows operating systems. It offers a comprehensive and consistent programming model for developing applications with visually stunning user interfaces, seamless and secure communication, and the ability to model a variety of business processes. The .NET Framework is a critical component for the proper operation of many software applications, so it must be installed.

The error code 0x800F0906 is a common problem that can arise during the installation of the .NET Framework on Windows-based computers. This error code is typically generated when the system is unable to download and install the required files for the .NET Framework for a variety of reasons, including a poor internet connection, corrupt system files, or conflicts with other software installed on the system.

This issue can affect users in several ways, including:

• Preventing the installation of certain software applications that require the .NET Framework to run.
• Causing existing .NET Framework-dependent applications to stop working.
• Interrupting the installation process of other software applications that require the .NET Framework to be installed.

To resolve the .NET Framework installation error 0x800F0906, you can follow the step-by-step instructions below or you can try an automatic maintenance tool like [d1]. It can fix most system errors, BSODs,[ref en-2] corrupted files, and registry[ref en-3] issues.

Solution 1. Check Windows Update

• Press the Windows key + I to open the Settings app.
• Click on Update & Security.
• Select Windows Update and click on Check for updates.

• Install any pending updates and restart your computer if prompted.

Solution 2. Enable .NET Framework in Windows Features

• Press the Windows key + R to open the Run dialog.
• Type appwiz.cpl and press Enter to open the Programs and Features window.
• Click on Turn Windows features on or off on the left panel.

• In the Windows Features window, find .NET Framework and check the box beside it.
• Click OK to apply the changes and wait for the process to complete.
• Restart your computer.

Solution 3. Use the .NET Framework Repair Tool

• Download the .NET Framework Repair Tool from the Microsoft Download Center.
• Run the tool and follow the on-screen instructions to repair the .NET Framework installation.

Solution 4. Install the .NET Framework using the Standalone Installer

• Download the .NET Framework offline installer from the Microsoft Download Center.
• Run the installer and follow the on-screen instructions to install the .NET Framework.

Solution 5. Modify the Group Policy Settings

• Press the Windows key + R to open the Run dialog box.
• Type gpedit.msc in the dialog box and press OK to open the Local Group Policy Editor.
• Expand Computer Configuration and then Administrative Templates. Select System.
• Open the Specify settings for optional component installation and component repair Group Policy Setting and click on Enabled.

• If an alternative source file is needed, specify the fully qualified path of a shared folder that contains the contents of the \sources\sxs folder from the installation media. This can be done in the Alternative source file path box.
• To use a WIM file as an alternative source file location, add the WIM: prefix to the path and add the index of the image you want to use in the WIM file as a suffix. For example, WIM:\server_name\share\install.wim:3 (3 represents the image index).
• Check the box to select Contact Windows Update directly to download repair content instead of the WSUS (Windows Server Update Services), if applicable.
• Click OK.
• In the command prompt, type update/force and press Enter to apply the policy.

Solution 6. Perform a System Restore

• Press the Windows key + R to open the Run dialog.
• Type rstrui and press Enter to open the System Restore utility.

• Follow the on-screen instructions to restore your computer to an earlier point when the .NET Framework was working correctly.

Solution 7. Use the Windows Installation Media

• Insert the Windows installation media into your computer.
• Open the Command Prompt.
• Type the following command and press Enter:

Dism /online /enable-feature /featurename:NetFx3 /All /Source:<drive>:\sources\sxs /LimitAccess

• Replace <drive> with the letter of the drive where the Windows installation media is located (e.g., D:\sources\sxs).
• Wait for the command to complete.
• Restart your computer to apply the changes.