A headset that pairs but never connects is half-paired on both ends. Remove the device node, reset the headset, and stop the radio from being powered down.
Remove the device in **Settings**, delete the leftover node in **Device Manager** with hidden devices shown, restart **bthserv**, reset the headset's own pairing, then re-pair.
**Get-PnpDevice** shows devices that Settings no longer lists. A device with an error status is present but not working, which is different from not present at all.
Get-PnpDevice -Class Bluetooth | Select-Object FriendlyName,Status,InstanceId
Get-PnpDevice -Class AudioEndpoint | Select-Object FriendlyName,Status | Select-Object -First 10The supported removal writes the pairing away on both the adapter and the profile. Anything you do in Device Manager first is only cosmetic.
:: Settings > Bluetooth & devices > three dots > Remove device
start ms-settings:bluetoothDevice Manager hides non-present devices by default, and those are exactly the stale entries. Show them, then uninstall the node with its driver removed from the list.
Get-PnpDevice -Class Bluetooth | Where-Object Status -eq 'Unknown' | Select-Object FriendlyName,InstanceId
pnputil /remove-device "BTHENUM\{0000110b-0000-1000-8000-00805F9B34FB}_LOCALMFG&0000\7&1A2B3C4D&0&000000000000_00000000"**bthserv** owns the adapter, **BTAGService** the audio gateway. A restart clears the state without touching drivers.
Get-Service bthserv,BTAGService | Select-Object Name,Status,StartType
Restart-Service bthserv -Force
Start-Service BTAGService -ErrorAction SilentlyContinueMost headsets remember the last host and refuse a new pairing until that memory is cleared. The reset is model-specific and usually a long press on the power or pairing button.
:: typical patterns
:: hold power + pairing for 5-10 s until a double blink
:: or hold the multifunction button while plugging in the chargerPower management on the adapter is the reason a working headset drops every ten minutes. Unchecking the save-power option fixes it for good.
Get-PnpDevice -Class Bluetooth | Where-Object FriendlyName -match 'Adapter|Radio' | Select-Object FriendlyName,InstanceId
:: Device Manager > Bluetooth adapter > Properties > Power Management > clear 'Allow the computer to turn off this device to save power'The radio is off in firmware or the driver is missing. Check the BIOS setting and Device Manager for an unknown device before buying a dongle.
The stereo endpoint is missing or disabled. Enable the headphones endpoint under Sound settings and set it as default.
The device is still bonded to another host, often a phone in the same room. Turn that host's Bluetooth off during pairing.
The 2.4 GHz band is shared with Bluetooth. Move the PC to the 5 GHz network or a wired connection.
Only the pairing and its per-device settings. Re-pairing restores the connection, and Windows re-creates the audio endpoints.
Usually the adapter's power saving or an interfering 2.4 GHz network. Both are fixed without reinstalling drivers.
Nothing to undo beyond the removal itself: pair the device again in Settings, and re-tick the adapter's power management option if you cleared it. Service restarts are temporary.
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