Permanently Disabling Hands-Free Telephony in Windows 11
Understanding the Issue:

Hands-Free Telephony (HFT) is a feature that allows your computer to function as a hands-free phone. While useful for some, it can cause audio issues for others, especially when using Bluetooth headsets.

Potential Solutions:

Method 1: Disabling the Hands-Free Device
Access Device Manager:
Press Win + X and select "Device Manager."
Locate the Hands-Free Device:
Expand "Bluetooth" or "Audio inputs and outputs." Look for a device with "Hands-free AG" in its name.
Disable the Device:
Right-click on the device and select "Disable device."
Method 2: Disabling the Bluetooth Audio Gateway Service
Access Services:
Press Win + R, type "services.msc," and press Enter.
Find the Service:
Locate "Bluetooth Audio Gateway Service" in the list.
Disable the Service:
Right-click on the service and select "Properties."
Change the startup type to "Disabled."
Method 3: Modifying Registry (Advanced Users):
Caution: Incorrect registry modifications can lead to system instability. Proceed with caution and create a system restore point before making changes.

Access Registry Editor:
Press Win + R, type "regedit," and press Enter.
Navigate to the Key:
Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BthA2dp.
Create or Modify Value:
Create a new DWORD (32-bit) value named "DisableHandsfree" or modify its existing value to 1.
Exit Registry Editor:
Close Registry Editor.
Additional Tips:
Check for Updates: Ensure your audio drivers and Windows are up-to-date.
Uninstall and Reinstall Bluetooth Drivers: If issues persist, try uninstalling and reinstalling your Bluetooth drivers.
Third-Party Audio Software: Some audio software might interfere with HFT. Try disabling or uninstalling them temporarily.
Important Note:

While these methods have been reported to work for many users, there's no guaranteed permanent solution. Some users have reported the issue recurring after updates or system changes.

By combining these approaches, you can significantly reduce the chances of HFT re-enabling and improve your audio experience.

Would you like to try any of these methods?

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@eephee

@darksheen 这个就是文件管理器＋吧？

@yangwcool 也在用它。

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供电，供电.供电！

轻轻的敲，拧的不要。

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我也想知道，有人知道吗？

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2 天了！

@chinni 谢了

@zzii 每次更新后习惯性更新