Hello Karl Hausser, welcome to Microsoft Q&A forum.
The Windows Copilot app is not available on Windows 10. Microsoft has retired the feature on Windows 10 and permanently shut down the backend services that supported it. This change is part of Microsoft’s focus on moving new innovations to Windows 11. As a result, the app will never connect again.
The full Copilot experience now requires Windows 11, version 22H2 or newer. If you want to use Copilot while staying on Windows 10, your can use Copilot on the web at https://copilot.microsoft.com in any browser or use the Copilot sidebar built into Microsoft Edge.
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