This matches a known Windows 11 24H2 issue where Bluetooth audio device handoff can freeze or crash apps and games when the Bluetooth device disappears mid-session. Since the issue started after a Windows update, start with these workarounds and repair steps:
- Set a non-Bluetooth device as the default playback device.
- Open Sound Settings.
- Go to More sound settings.
- Set Speakers or another wired/fixed device as the default playback device.
- In Roblox, use the Bluetooth headset only as the app output if possible.
- This keeps a default audio endpoint available when the Bluetooth device disconnects.
- Enable Stereo Mix.
- Open Sound Settings > More sound settings > Recording tab.
- Right-click and enable Stereo Mix.
- Set it as the default recording device.
- This keeps an audio endpoint alive so Windows has a fallback when the Bluetooth headset disconnects.
- Run the Bluetooth troubleshooter.
- In Windows 11, go to Start > Settings > System > Troubleshoot > Other troubleshooters.
- Next to Bluetooth, select Run.
- Update the Bluetooth driver.
- Open Device Manager.
- Expand Bluetooth.
- Right-click the Bluetooth adapter and select Update driver > Search automatically for updated driver software.
- Restart the PC if prompted.
- If Windows does not find a newer driver, install the latest Bluetooth driver from the PC manufacturer.
- If the problem started after the update, check for newer Windows updates.
- Go to Start > Settings > Windows Update.
- Select Check for updates.
- Install any available updates and restart.
- Reinstall the Bluetooth adapter.
- Open Device Manager.
- Expand Bluetooth.
- Right-click the Bluetooth adapter and select Uninstall device > Uninstall.
- Shut down the PC completely, then turn it back on.
- Windows should reinstall the adapter automatically.
- If Bluetooth devices still trigger crashes, remove and pair the device again.
- Go to Start > Settings > Bluetooth & devices > Devices.
- Select More options for the device > Remove device > Yes.
- Pair it again.
If the crash happens specifically when Bluetooth headphones disconnect, the strongest workaround is keeping a wired/default audio device active and enabling Stereo Mix.
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