Error 8011 with dotnethost on Windows x64 means your .NET runtime is missing or broken; there’s no separate MSI for it, but installing the latest from Microsoft fixes everything.

Ensure you are downloading the x64 version only if your Windows is 64-bit. You can check this by going to Settings > System > About and looking at "System type". Useful Resources Download .NET 8.0 (Linux, macOS, and Windows) | .NET

Let the tool remove the broken registry keys, then restart your PC and try a fresh installation from dotnet.microsoft.com. Advanced Fix: Registry Cleanup

: Visit the .NET 8.0 Download Page on the official Microsoft website.

: Right-click the downloaded file and select Run as Administrator to ensure it has the permissions needed to overwrite corrupted registry keys. 2. Repair via Control Panel

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