How to uninstall and reinstall Microsoft .NET runtimes to fix errors with Autodesk software on a windows machine

Issue:

How to perform a clean removal and reinstallation Microsoft .NET Runtime, ASP.NET Core Runtime, and .NET Desktop Runtime for any of the following reasons:

• • • The components are corrupted/damaged,
    • The latest updates of the components are missing or are not installed properly.
    • There are different versions of .NET Runtime version and ASP.NET Core Runtime installed on the machine.

Solution:

Uninstall ASP.NET Core Runtimes, and .NET Core Runtimes on the machine

1. 1. OPTION 1 –  Use the Control panel (recommended):
      Open the windows control panel, then find and uninstall all present versions of the following 3 software:
      • • • Microsoft .NET Runtime - <version> (x64)
          • Microsoft Windows Desktop Runtime - <version> (x64)
          • Microsoft ASP.NET Core <version> - Shared Framework (x64)
   2. OPTION 2 – Use the Microsoft .NET Uninstall Tool (good for bulk operations):
      Note: This tool can only remove .NET SDKs and runtimes that were installed using a .NET SDK or .NET Runtime installer, or by a Visual Studio Installer (applies only for Visual Studio 2019 16.3 and earlier).
      1. 1. Download the .NET Uninstall Tool:
            1. 1. Go to Releases · dotnet/cli-lab (github.com)
               2. Scroll down to the ‘Assets’ column and download the .msi file (for Windows OS).
                  
               3. Follow the instructions and install the Microsoft .NET Core SDK Uninstall Tool.
         2. Open an elevated command prompt (Run as administrator)
            
         3. Type the following commands, then hit ‘enter’ on the keyboard to execute:
            1. • dotnet-core-uninstall list
                 (*Optional – This will list all ASP.NET Core Runtimes, and .NET Core Runtimes installed on the machine)
                 
               • dotnet-core-uninstall remove --all --runtime --yes
                 (Run this command to remove all .NET Core Runtime on the machine)
               • dotnet-core-uninstall remove --all --aspnet-runtime --yes
                 (Run this command to remove all ASP.NET Core Runtime on the machine)

Download and install Microsoft .NET Runtimes

1. 1. Go to https://dotnet.microsoft.com/en-us/download/dotnet/
   2. Select the latest active version or the specific version recommended for your software to get to the download page,
      
      Note: While Autodesk 2027 products require .NET 10 Runtimes, Autodesk 2024 - 2026 products only support .NET 8 Runtimes.
   3. Download the 3 Runtime apps to your local drive (see example for .NET 10 for Windows (x64) below):
      1. 1. ASP.NET Core Runtime 10.0.09
         2. .NET Desktop Runtime 10.0.09
         3. .NET Runtime 10.0.09
            
   4. Double-click on the installers to Install the apps.