How do I fix .NET runtime installation error?

Reg Keegan 0 Reputation points

I keep getting a message to download and install .net runtime, x64, V 8.0.11. I downloaded the repair tool and it could not fix the problem. I have no idea how to fix this problem. suggestions?

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  1. Lizzy Dinh (WICLOUD CORPORATION) 620 Reputation points • Microsoft External Staff • Moderator

    Hi @Reg Keegan ,

    Thank you for the information and the screen capture you provided, it’s very helpful for the investigation.

    Based on the error message you shared, I recommend downloading the latest .NET Desktop Runtime from here. While the required version is 8.0.11, the latest release includes important security updates and fixes, so choosing the most recent version is generally the better option. That said, if you prefer to use version 8.0.11, you can simply scroll down on the same page as it is still available.

    Whichever version you decide to install, please take a moment to review the details I highlighted in the screenshot to ensure you select the correct runtime for your system.

    👁 User's image

    If anything is unclear or you need further assistance, please don’t hesitate to reach out, I’m always happy to help. If you find this answer useful, I would also appreciate your feedback on my support following this guidance.

    I hope everything works smoothly for you. Have a wonderful day!

    1. Reg Keegan 0 Reputation points

      👁 Screenshot 2026-05-24 .NET desktop runtime

      This is a screenshot of my problem. Selecting "Download it now" doesn't work.

    2. Lizzy Dinh (WICLOUD CORPORATION) 620 Reputation points • Microsoft External Staff • Moderator

      Hi @Reg Keegan ,

      I wanted to briefly follow up on my recent answer. I know it might be a busy time with your work, so please feel free to reply whenever convenient.

    3. Reg Keegan 0 Reputation points

      Screenshot 2026-06-01 .NET desktop runtime.jpgHello, sorry it's taken me a long time to respond. I downloaded the suggested file. Installed it and continued to receive the same error. I ran a repair and continue to receive the same error.

    4. Lizzy Dinh (WICLOUD CORPORATION) 620 Reputation points • Microsoft External Staff • Moderator

      Hi @Reg Keegan ,

      Thank you for your update.

      Regarding the situation you informed, I think the runtime is not being detected correctly, not that it’s missing. Please confirm with me whether you also tried to download and install the exact version that your system required, which is 8.0.11? If you have not done that, please try.

      If even after that, the issue still persists, please try these steps:

      1. Open Command Prompt and run: 
         dotnet --list-runtimes
        If you don't see anything like Microsoft.WindowsDesktop.App 8.0.x [C:\Program Files\dotnet\shared\...] the runtime isn’t actually installed correctly.
      2. Go to Apps & Features Uninstall ALL: .NET Runtime .NET Desktop Runtime
      3. Reboot
      4. Install ONLY: .NET Desktop Runtime 8.x (latest or 8.0.11)

      I hope this time everything will work as expected. If there is any more question, please feel free to reach out.

      Thank you for your time working with me.

    5. Reg Keegan 0 Reputation points

      Now I'm lost. Still have the same problem. STep 1 produced the attached list. Not sure where Apps and Features are. When I type that into the box it takes me to the web. Not as savvy as I used to be.👁 Screenshot 2026-06-02 command prompt runtime
      👁 ASP.NET CORE 8.0.27 Picture1

      and I uninstalled what is seen in the 2nd screenshot. I have downloaded the 8.0.11 4x and reinstalled, repaired, etc. and continue to receive error.

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