WINDOWS SERVICE
bthserv: Bluetooth Support Service
Supports the discovery and association of remote Bluetooth devices.
TECHNICAL SUMMARY
| Service name | bthserv |
|---|---|
| Display name | Bluetooth Support Service |
| Runs from | C:\Windows\System32\svchost.exe |
| Command line | svchost.exe -k LocalService -p |
| Runs as | LocalService |
| Verdict | Depends on what you use |
| Microsoft, Windows Server 2016 guidance | OK to disable (if not used) |
Paths, signer and service account observed on Windows 11 build 26300 on 11 November 2026. Run the commands below to check your own PC.
Should you touch it?
Depends on what you useMicrosoft notes that stopping or disabling it may cause already installed Bluetooth devices to fail to operate properly and prevent new devices from being discovered, and rates it OK to disable if Bluetooth is not used. Its default startup type is Manual: on the desktop PC used for this page, which has no Bluetooth radio, it was stopped.
What PC Tweaker does with it
PC Tweaker does not change this service. No control in the catalogue stops it, disables it or edits its start type. The Bluetooth volume control changes how Windows handles volume for Bluetooth audio devices, not this service.
Rather not edit the registry by hand?
PC Tweaker shows the exact change before it runs, records the value it replaces and puts it back with Restore. The Free plan needs no account. If a payment fails or a plan ends, Pro tools lock; changes already applied stay as they are and Restore still undoes them.
Check it yourself
See its state and start type
PowerShellGet-Service bthserv | Format-List Name, DisplayName, Status, StartType sc qc bthservLet it start only when needed (administrator)
Note the START_TYPE that sc qc printed first, so you can put it back.
cmdsc config bthserv start= demandPut it back
Use the start type you noted.
cmdsc config bthserv start= <auto|delayed-auto|demand>
Common questions
What does the bthserv service do?
Supports the discovery and association of remote Bluetooth devices. It runs C:\Windows\System32\svchost.exe (svchost.exe -k LocalService -p) as LocalService.
Can I disable bthserv?
Depends on what you use. Microsoft notes that stopping or disabling it may cause already installed Bluetooth devices to fail to operate properly and prevent new devices from being discovered, and rates it OK to disable if Bluetooth is not used. Its default startup type is Manual: on the desktop PC used for this page, which has no Bluetooth radio, it was stopped.
How do I check that it is the real service?
On Windows 11 build 26300 the service is registered as svchost.exe -k LocalService -p, runs as LocalService and loads C:\Windows\System32\bthserv.dll, signed by Microsoft Windows. The per-user Bluetooth User Support Service (BluetoothUserService) depends on it. sc qc bthserv prints the same on your PC.