BluetoothHandsFreeToggle is a small Windows utility that manages the Bluetooth Hands-Free (HFP / Headset) audio path at the operating system level.

The tool is designed for scenarios where Windows applications (most commonly games or communication-enabled apps) implicitly activate the Hands-Free profile, forcing Bluetooth headphones into low-quality call audio instead of stereo (A2DP).

• A console-based Windows tool for enabling or disabling Bluetooth Hands-Free (HFP) support
• Focused on audio stability, not device removal or driver manipulation
• Intended for users who want Bluetooth headphones for output only, often with a separate microphone

• Detects known Windows components responsible for Bluetooth Hands-Free (HFP)
• Stops and disables them when requested
• Optionally applies a registry-level startup lock for reliability
• Can restore a safe default state using a small local backup

• Language: C#
• Runtime: .NET (console application)
• Platform: Windows 10 / Windows 11
• Privileges: Administrator (required only to change service state)

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1. Download BluetoothHandsFreeToggle.exe from Latest Release.

2. Run it (Windows will ask for Administrator once).

3. Use the menu:

   • [1] Status
   • [2] Disable Hands‑Free (HFP)
   • [3] Enable Hands‑Free (HFP)

That’s it.

BluetoothHandsFreeToggle is useful if you:

• Play games where sound randomly turns into “telephone quality” (very common with Call of Duty / Warzone / MW).
• Use Bluetooth headphones for gaming and never want Windows to switch to Headset/Hands‑Free.
• Use a separate microphone (laptop mic / USB mic) and want Bluetooth for output only.
• Want stable audio devices without Windows “communications” surprises.

Bluetooth headsets on Windows usually expose two profiles:

• A2DP (Stereo) — great audio quality ✅
• HFP / Hands‑Free (Headset / phone mode) — low quality call audio ❌

Some apps trigger HFP (even if you don’t explicitly enable voice chat). Once HFP activates, Windows may switch your headset into the “Headset” device and your audio quality drops.

This tool disables the Windows components that enable HFP, so Windows can no longer push your headset into phone mode.

BluetoothHandsFreeToggle performs only a small, conservative set of changes:

• Targets known HFP-related Windows components (services) when they exist on your system.
• Stops them (when possible) and sets startup to Disabled.
• Optionally applies a registry “Start=Disabled” lock for reliability.
• Creates a small backup so “Enable” can restore a safe baseline.

✅ It does not uninstall drivers, remove Bluetooth pairings, or modify firmware.

Backup location:

• %ProgramData%\BluetoothHandsFreeToggle\backup.json

• When HFP is disabled, your Bluetooth headset microphone / call mode will not work.

• If you need voice chat, use:

  • Laptop built‑in mic, or
  • USB microphone / audio interface.

You can always restore voice mode by selecting Enable Hands‑Free (HFP).

No. The goal is to keep your headset in Stereo (A2DP) and prevent Windows from switching to Hands‑Free (HFP).

Because an app requests voice/communications audio, Windows enables the headset’s Hands‑Free profile. That profile trades audio quality for bidirectional “call” audio.

The tool is intentionally conservative:

• It only touches known HFP components.
• It avoids driver removal and pairing resets.
• It keeps a small backup for restore.

Usually an app already switched your audio pipeline and keeps the old state. Try:

1. Close the game/app that triggered it.
2. Disconnect and reconnect the headset.
3. If stubborn, reboot once.

Yes. Different Windows builds/drivers expose HFP via different service sets.

Sometimes. Tools that require admin and change service startup modes can trigger heuristics. You can check the release’s SHA‑256 on GitHub and build from source if you prefer.

• For gaming, keep Bluetooth for output only and use a separate mic.
• If a specific game triggers HFP, disable HFP first, then launch the game.
• If you ever need headset mic/calls, temporarily Enable HFP.

BluetoothHandsFreeToggle отключает в Windows режим Hands‑Free (HFP), чтобы Bluetooth‑наушники не превращались в «телефонный режим» с ужасным качеством звука. Особенно полезно для игр (включая Call of Duty), когда приложение дёргает голос/связь и ломает стерео.

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