Hi Mutuma,
Welcome to Microsoft Q&A Forum.
Thank you for providing such a detailed overview of your setup and the steps you've already taken. To help us better understand and troubleshoot the issue with your microphone not working on the HP Compaq 6200 Pro Small Form Factor desktop, could you please share a bit more information through the targeted questions? These additional details will help narrow down the possible causes and guide us toward a more accurate solution.
- Does your Bluetooth Adapter support HFP (Hands-Free Profile) or HSP (Headset Profile), which are required for microphone functionality? Can you provide the name or a brand of it?
- Are you using Windows 10, Windows 11, or another version? Mic support and Bluetooth behavior can vary depending on the OS.
- When you check Device Manager, does the Bluetooth headset appear under Audio inputs and outputs or Sound, video and game controllers? Is there any warning icon (yellow triangle) next to it?
- Have you updated the drivers for both the Bluetooth adapter and audio devices via Device Manager?
- In Settings > System > Sound > Input, is the Calus H84D headset listed as an available input device? If yes, does the input level bar move when you speak?
- If you open Control Panel > Sound > Recording tab, is the headset microphone listed there? Is it set as the default device?
- Are there other microphones (e.g., from the webcam) still active that might be interfering or prioritized?
- Have you tried connecting the Bluetooth headset to another Windows PC to see if the microphone works there?
- Are you connecting the headset via Bluetooth only, or using any auxiliary cable or splitter?
Providing answers to these questions will help us determine whether the issue lies with the headset itself, the Bluetooth adapter, your Windows configuration, or possibly a driver-related conflict. Once we have a clearer picture based on your responses, I’ll be able to guide you more precisely through the next steps to help resolve the microphone issue effectively.
Note: Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.
I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.
Thank you for your patience and your understanding. If you have any questions, please feel free to reach out.
I'm looking forward for your reply.