Repair .NET Framework 3.5 Installation Error 0x800F0950

Received error Windows cannot make requested changes – Error 0x800f081f, 0x800f0805, 0x80070422, 0x800f0922, 0x800f0906, etc. while installing .NET Framework 3.5 on Windows 10? Let’s understand what .NET Framework is and how to fix .NET Framework 3.5 Installer error 0x800f0950 Windows 10.

The .NET Framework is a programming environment used by many Windows applications. Some programs developed with a specific version of Visual Studio require a specific version of the .NET Framework. Many companies develop their applications to run on the .NET Framework. These apps target a specific version. If you see this pop-up, try running an application that requires version 3.5 of the .NET Framework, but this version is not installed on your system.

Install .NET Framework 3.5 using Windows features

  • Right-click “Start” and select “Run.” Type OptionalFeatures.exe and press Enter.
  • In the “Turn Windows features on or off” dialog box that appears, select the .NET Framework 3.5 (including .NET 2.0 and 3.0) check box.
  • Select OK and restart your computer when prompted.

You do not need to select the Windows Communication Foundation (WCF) and Windows Communication Foundation (WCF) Non-HTTP Activation subelements of HTTP Activation, unless you are a developer or server administrator who requires this functionality.

Check and install the latest Windows updates

Windows 10 Update KB4507453 Interrupts SFC-Scan Command

If you encounter error code 0x800F081F or 0x800F0906, the first thing to do is check for Windows updates and install any available updates. You can do this through Settings -> Update & Security -> Windows Update -> Check for Updates. Then try activating / installing the .NET Framework through Programs and Features. Need help with the following solution.

Activate the .NET Framework using DISM command

Start a DISM scan

And a simple solution. If the above methods don’t work, you can try manually activating NET Framework 3.5 using DISM command. To do this, first download the microsoft-windows-netfx3-ondemand-package.cab below and copy the downloaded netfx3-onedemand-package.cab file to your Windows installation disk (drive C :).

  • Then open a command prompt. As an administrator, enter the following command and press Enter to run it.
  • Dism.exe / online / enable-feature / feature name: NetFX3 / source: C: \ / LimitAccess

Wait for the order to be 100% complete. Then you will receive the message The operation was completed successfully. Close Command Prompt and restart the window to start over. That’s all you have successfully installed .NET Framework 3.5 on your Windows 10, 8.1 PC.

Download the official NET Framework

Execute the .NET Framework Cleanup Tool

If the installation of NET Framework 3.5 fails for any reason, either with the Windows Update option or Windows installation media, downloading it should be the ideal solution.

If you choose this option, make sure you select the correct source to download the installation media. We recommend that you go to Microsoft’s official website for this purpose. We recommend that you choose this official link to access the file.

After downloading the file, run it and install the framework. You can activate the framework after installation using the second method described above.

Ideally, these fixes should help you achieve the best results in fixing error 0x800f0950 in Windows Server 2019. Now that you know that the failure was due to the lack of the .NET Framework 3.5, any method based on platform performance should help you. achieve the best results.

Check out the options and fixes in this collection and find the best possible solution for your needs. Use whichever method works best for you and get the system back online.