Hello, thank you for reaching out to the Microsoft Community. I'm here to help with your questions or issues.
Are you running Copilot via Edge (web-based) or inside Windows 11's native Copilot shell?
But from what you say, this is actually how Copilot is designed to work. Adjusting your microphone placement won’t solve the issue, the Copilot voice system expects completely clean input without any echo. Since it doesn’t have built-in echo cancellation or full-duplex control, it will keep cutting off when it detects feedback.
If you want smooth, uninterrupted responses, the best thing is to run Copilot on mute and use text input instead or switch to headphones to avoid feedback altogether.