Welcome Andrew Holmes,
Thank you for reaching out to the Microsoft Q&A forum. I am sorry to hear about your issue where the Copilot app in Windows 11 does not recognize your microphone.
You can try the following steps to troubleshoot the issue:
Option 1: Check App Permission
- Go to Settings > Privacy & security > Microphone and make sure that the toggle for the Copilot app is turned on.
Option 2: Repair and Reset the App
- Go to Settings > Apps > Installed apps, find Copilot app, click the three dots and select Advanced options, scroll down and choose Repair (If the issue still persists, select Reset).
Option 3: Update Driver
- Go to Device Manager > Audio inputs and outputs. Right-click your microphone (such as Realtek Audio), select Update driver > Search automatically for drivers. Restart your PC after completing the update.
Option 4: Uninstall and Reinstall the Copilot App
- Update the Copilot app from the Microsoft Store and restart your PC to apply any microphone-related patches.
I really hope that the information I gave above was helpful to you. Please feel free to reply below and let me know if you have further concern on this matter.
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