How to Fix ‘.NET Framework v3.5 Installation Error 0x800F0950’ in Windows 11

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In early 2021, the likelihood of Microsoft releasing a successor to Windows 10 in the foreseeable future seemed extremely slim. That was until the end of May, when CEO Satya Nadella began talking openly about “the next generation of Windows.” Speculation about a possible “Windows 11” soon took over, especially after Microsoft announced an event for June 24. A preview was leaked even before the official unveiling, but Microsoft still had a few surprises up its sleeve.

The .NET Framework is a software framework used by many Windows applications. For developers, the .NET Framework provides a unified programming model for building applications. Some programs developed with a particular version of Visual Studio require a particular version of the .NET Framework. Many companies develop their applications to run with the .NET Framework, and these applications are targeted to a specific version. In this article, we show you how to fix .NET Framework v3.5 installation error 0x800F0950 on Windows 11.

Fix ‘.NET Framework v3.5 Installation Error 0x800F0950’ on Windows 11

Run the .NET Framework Repair Tool

If the .NET Framework installation was interrupted by a power outage, unexpected shutdown, or the like, there is a chance that some leftover files are interfering with the installation of new instances of the .NET Framework. In this particular case, running the Microsoft .NET Framework Repair Tool is the best solution. It will detect and fix problems with your installation of the .NET Framework.

Just download this repair tool from the Microsoft website. Then run the installer and give it administrator privileges. Then follow the instructions on the screen to run the scan and apply the recommended repair strategies. When the repair is complete, restart your PC to see if the problem is fixed.

Enable the .NET Framework using the DISM command.

If the above fixes didn’t work for you, you can try installing the .NET Framework with installation media by enabling it with the DISM command. As suggested by some users on the Microsoft Community page, this solution has worked for many users and it might work for you too. So try installing the .NET Framework 3.5 directly from supported installation media by following the steps below:

  • First, insert your compatible installation media into your flash drive or DVD drive. Or, if you’re using an ISO file, mount ISO.
  • Now, open Command Prompt with elevated privileges.
  • Then, enter the following command in the CMD; just replace X with the letter of the drive where you have inserted the installation media:
    • Dism /online /enable-feature /featurename:NetFX3 /All /Source:X:sourcessxs /LimitAccess
  • Once the process is complete, restart your PC and check if the error is now fixed or not.

Install pending Windows update

This error code can occur if you have not installed any pending Windows updates intended to install the .NET Framework on your PC. Therefore, make sure that you have installed all pending Windows updates. To do this, open the Settings app by pressing Windows + I and then go to the Windows Update section. Then check for available updates and install any pending updates. If you have installed all Windows Updates, you can find the .NET Framework 3.5 in the Windows Update component.

Install Microsoft’s .NET Framework 4.8 for Windows 11

In some cases, Windows 11 users face error 0x800F0950 when launching a game that requires .NET Framework version 3.5. These games also require the newer versions of the .NET Framework to run. If this scenario applies to you, you can try downloading and installing the .NET Framework version 4.8 from the Microsoft DotNET site. This should fix the problem for you.

Here are the main steps to install the .NET Framework 4.8 on Windows 11:

  • First, go to the official .NET Framework 4.8 download page.
  • Now, click the Download .NET Framework 4.8 Runtime button to download the respective installer.
  • Next, double-click the executable file and then follow the instructions on the screen to complete the installation.
  • When the installation is done, restart your PC and see if the 0x800F0950 error is fixed now.

Final words: How to Fix ‘.NET Framework v3.5 Installation Error 0x800F0950’ in Windows 11

I hope you understand this article, How to Fix ‘.NET Framework v3.5 Installation Error 0x800F0950’ in Windows 11. If your answer is no, you can ask anything via the contact forum section related to this article. And if your answer is yes, please share this article with your friends and family to give us your support.

Editorial Staff
Editorial Staff
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!


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