How do I resolve error code 43 for Bluetooth chipset in Windows 7?

Sunil January 4, 2015

The properties dialog box in Control Panel – Devices and Printers – Bluetooth chipset displays yellow triangle with Code 43 error for Bluetooth chipset. Please tell how to resolve it. I tried drivers uninstall and then reinstall drivers and Registry Cleaner. But the Bluetooth icon is not yet displayed in bottom right corner as was displayed as before.

  1. Vinod Tiwari
    January 10, 2015 at 10:05 am

    Simply disconnect it and reinstall. It will work longer in future.

  2. ha14
    January 6, 2015 at 2:52 pm

    Nice, but why do you suggest Sony Ericsson Xperia x8 Mobil phone driver?

  3. Alexie Glenn Castanares
    January 5, 2015 at 3:15 pm

    Error Code 43 is a Device Manager error that means the following: Windows has stopped this device because it has reported problems. (Code 43)


    It would be grateful if you can reply to this question in order to assist you further.

    1. Is your other USB device works fine?
    2. Have you made any changes to the computer prior to this issue?

    I would suggest you to try the following methods and check if it helps.

    Method 1:

    Run the Hardware troubleshooter and check if it helps.
    Open the Hardware and Devices troubleshooter:

    Method 2:

    Run the Fixit from the following Microsoft Fixit article and check if it helps.

    Hardware devices are not working or are not detected in Windows:

    Method 3:

    I would suggest you to install the driver for Sony Ericsson Xperia x8 Mobil phone drives and check if it helps.

    Method 4:

    Remove and reinstall all USB controllers.
    To remove and reinstall all USB controllers, follow these steps:

    a) Click Start, click
    Run, type sysdm.cpl in the Open box, and then click
    b) Click the Hardware tab.
    c) Click the Device Manager Button.
    d) Expand Universal Serial Bus controllers.
    e) Right-click every device under the
    Universal Serial Bus controllers node, and then click Uninstall to remove them one at a time.
    f) Restart the computer, and then reinstall the USB controllers.
    g) Plug in the removable USB storage device, and then test to make sure that the issue is resolved.

    Method 4:

    Update chipset drivers and check if it helps.
    Update a driver for hardware that isn't working properly:

    • Sunil
      January 8, 2015 at 5:05 pm

      Thanks for your sincere endeavor which is great.

      Ans.1) Other usb device like usb adapter enabled headphone-mic combo works okay

      Ans.2) Windows update has been done frequently. I happened to read that win update can cause bluetooth prob

  4. Jan F.
    January 4, 2015 at 7:33 pm

    If you are using a laptop consult its manual about any hotkeys or physical switches that may be able to enable and disable Bluetooth. Make sure Bluetooth is enabled/active, restart your system and check again.

    On occasion such switches can cause a hardware fault to be (falsely) detected.

    • Sunil
      January 8, 2015 at 5:03 pm

      hi. It is desktop

  5. ha14
    January 4, 2015 at 1:44 pm

    who is the manufacturer of your bluetooth device?

    1) open cmd with administrative rights
    2) type cfs /scannow and hit enter, wait the scan to finish
    3) reboot

    IntelĀ® Chipset Device Software (INF Update Utility) the reboot

    check the bluetooth compatibility with windows 7

    you can also try to run the bluetooth device in Vista compatibility mode

    Tips for solving problems with USB devices

    A Bluetooth device stops working, and you receive error code 43 together with event 17 after you resume a computer that is running Windows 7 from sleep

    Code 43: Windows has stopped this device because it has reported problems

    • Sunil
      January 6, 2015 at 5:01 pm

      Thanks. Great answer as usual! The manufacturer / this is the device :

      The uninstall and reinstall and Registry cleaner worked to resolve code as of now. But please tell , why the bluetooth icon has stopped showing in bottom right corner as few days earlier. I heard that win update may be reason. Please suggest

    • Bruce E
      January 7, 2015 at 3:52 am

      The Bluetooth icon could have been accidentally removed from the notification area. To re-enable it, click on Start and type 'bluetooth'. Select the 'Change Bluetooth settings' option. Select the 'Show the Bluetooth icon in the notification area' option and click on Apply.

    • Sunil
      January 7, 2015 at 12:18 pm

      hi Bruce, I understand your answer. Please see that the "change blue tooth settings" is not in Start - type Bluetooth search results. Also , in customize icon in bottom right corner does not show option to hide/display bluetooth icon. The icon used to display few weeks back , since when pc has been updating windows. I heard that win update may be reason. a) Please suggest

      and b) would installing a third-party bluetooth software ( to add and connect to bluetooth devices ) would help alternatively?

      c) If b) is true , then Please tell download links for the respective software for Windows 7 Ultimate

    • ha14
      January 7, 2015 at 6:25 pm

      Open the Hardware and Devices troubleshooter

      Bluetooth devices do not work correctly on a computer that is running Windows 7

    • Sunil
      January 8, 2015 at 5:42 pm

      On running troubleshooter , about three error statements pointing that driver problem...kind of microsoft teredo bus controller..SM bus controller driver..another statement Hardware changes might not have been detected..and also mention that "WIndows update configured to never install drivers - Driver updates aren't automatically installed when detected by Windows Update.

      and bluetooth icon in bottom right not yet detected

    • ha14
      January 8, 2015 at 9:54 pm

      if Windows update configured to never install drivers maybe to allow it just once in order to update drivers for bluetooth?

      microsoft teredo bus controller it is for internet connection, you dont have internet access problems?
      Update a driver for hardware that isn't working properly

      Hardware devices are not working or are not detected in Windows

      How to Fix an SMBus Controller

    • Sunil
      January 9, 2015 at 3:39 pm

      Thank you! No internet access problem! I would surely like to set to update drivers to resolve bluetooth icon for audio output to bluetooth earphones. The Microsoft teredo and SMBus may have been detected in the troubleshoot , but seems a by product of the process and not connected to bluetooth dongle hardware

      It seems that win update has cause bluetooth icon removed as I read in blogs. Please see and reply

    • ha14
      January 9, 2015 at 9:19 pm

      maybe something to do with bluetooth Settings-Hardware- Under Power management: Allow the computer to turn off this device to save power" and "Allow this device to wake the computer

    • Sunil
      January 10, 2015 at 5:20 pm

      In your answer, I reached Hardware tab ( under bluetooth settings ) but how to access Under Power management , thereafter?

    • Sunil
      January 10, 2015 at 5:22 pm

      Also , I reached bluetooth settings box via Devices and Printers - CSR Bluetooth chip <- [Right click brings about bluetooth settings}

    • Sunil
      January 12, 2015 at 4:09 pm

      Thanks. I looked into your mentioned link and your instructions ( Power management tab ) with care and followed your instruction as re-confirmed in the link which you specified.

      Inspite of following the process , the bluetooth icon is not yet showing on re-starting the pc

      In same device manager , one of the adapter , under Network Adapter tree ie Microsoft Teredo Tunelling Adapter failed to show the menu for power management as in link
      It was in the other adapter ie Realtek PCIe GBIe Family Controller of network adapter tree , that i could follow the process outlined by you

      To also note , is that Microsoft Teredo Tunelling Adapter under "Network Adapter" and SM Bus Controller under "Other Devices" - both show yellow problem triangle. But am not sure if that is associated with the bluetooth point in this discussion

      Am not even sure if uninstalling a particular Windows update may be a solution to this problem

      Please see and reply if convenient for you

    • ha14
      January 12, 2015 at 9:50 pm

      try to reset cmos battery and flash BIOS if you can

    • Sunil
      January 13, 2015 at 4:58 pm

      Please tell how to reset, does it affect hd data?

      Can we look into any other source of prob?

    • ha14
      January 13, 2015 at 10:34 pm

      hi, it is by By removing and then reinstalling the CMOS battery you can also replace it
      resetting does not affect hd data

      well if the problem started after windows update then it can be the problem so uninstalling the update(s) is advised.

      did you try this one
      Bluetooth devices do not work correctly on a computer that is running Windows 7
      do a windows restore point before anything

      microsoft teredo tunneling adapter won't start (code 10).
      Fix: "This device cannot start" Code 10 error in Device Manager in Windows

    • Sunil
      January 15, 2015 at 5:47 pm

      Thank you! I tried restore but could not implement as restore point option to say, for example december 1st 2014 , was not noticed despite repeated endeavours in win 7 ultimate

    • ha14
      January 15, 2015 at 9:28 pm

      can you make a new profile and see if bluetooth will work okay? if yes then may be your present profile is corrupted?

    • Sunil
      January 16, 2015 at 1:37 pm

      Please tell what is practically meant by creating new profile? and how does one go about creating new profile?

    • ha14
      January 16, 2015 at 4:19 pm

      check this youtube tutorial

      What is a standard user account?
      Standard user (an account with limited privileges to change essential system settings)
      it is still possible to do administrator tasks within a standard user account, but you need the username and password of the administrator account.

      Fix a corrupted user profile

    • Doc
      February 3, 2015 at 12:11 am

      cfs /scannow will give you nothing but "'cfs' is not recognized as an internal or external command,
      operable program or batch file." The correct syntax for System File Checker is "sfc /scannow".

    • ha14
      February 3, 2015 at 11:29 am

      Thanks DOC for correcting the sfc scan:)

    • Sunil
      February 3, 2015 at 3:15 pm

      Thank you hosvep and DOC for answering this query. Can hardware prob in the bluetooth dongle be causing?

    • ha14
      February 3, 2015 at 5:54 pm

      yes hardware problem can cause problems

      before anything do a registry backup and create windows restor epoint
      go to C:windowssystem32driversand rename this file mpfilt.sys (to mpfilt.sys.old). Restart the pc. After the reboot open Regedit.
      open regedit go to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass
      click on {36FC9E60-C465-11CF-8056-444553540000}
      delete "UpperFilters" and "LowerFilters"


      How to back up and restore the registry in Windows

      How to identify an unknown device (e.g. Wireless LAN module)?

    • Sunil
      February 10, 2015 at 8:33 am

      Thanks. Your answer has greatly satisfied my intelligence. If further assistance is required, i would get back to you

  6. Bruce E
    January 4, 2015 at 1:12 pm

    The error code 43 indicates one of two different problems for any hardware. Either the hardware has a fault that it is reporting to the driver or the driver itself is borked.

    If you have uninstalled the driver and allowed the system to reinstall it and you have tried the latest driver available for the device and it is still reporting the same error, it is highly probable that the hardware is at fault.

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