After performing the steps above, verify that the framework is operating correctly: Open Command Prompt. Type dotnet --list-runtimes and press .
Use the extraction command to unpack the installer contents. For example, if your downloaded file is named dotnet-runtime-8.0.11-win-x64.exe and is saved to your Downloads folder, type:
An older .NET 8 runtime version is preventing the new one from installing.
Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products .
Launch the tool and select or Uninstalling depending on when your error occurs. Select .NET Host 8.0.11 (x64) from the list of programs.
Do not download the hosting bundle from third-party sites. Only use the official Microsoft sources to avoid corrupted files. Visit the official Microsoft .NET 8.0 Downloads Page. Locate the for Windows. Ensure it is version 8.0.11 . Download the dotnet-hosting-8.0.11-win.exe . 2. Verify the File Integrity (Crucial)
To "fix" your download and ensure system stability, avoid third-party mirror sites and use official Microsoft channels. 1. Official Microsoft Download
If you need help identifying which specific component is failing,
Run the installer with the rewrite arguments (replace the filename if yours varies slightly): msiexec /i dotnet-runtime-8.0.11-win-x64.msi /fmus Use code with caution.
Navigate to the official Microsoft support page and download the . Run the utility and select Uninstalling .
installer under the "ASP.NET Core Runtime" or ".NET Runtime" section. Manual Repair
If the MSI package is corrupted in your local registry, download the Microsoft Program Install and Uninstall Troubleshooter to fix the broken registry keys associated with dotnethost8011winx64msi . Verification of Successful Installation Once completed, ensure the server is properly configured: Open . Run: dotnet --list-runtimes Ensure Microsoft.AspNetCore.App 8.0.11 is listed.
Download the from the official Microsoft support website.
: Third-party registry tools often delete cached .msi paths, causing these exact issues.
Do not download individual .msi files from third-party websites. They often contain malware. Always get them directly from Microsoft. Visit the official .
The file dotnet_host_80_11_win_x64_msi is a component of the .