A Bluetooth device no longer works correctly, and you receive a Code 43 error in Device Manager when you wake a Windows Vista-based computer from sleep


You may occasionally experience the following symptoms when you wake a Windows Vista-based computer from sleep:
  • A Bluetooth device no longer works correctly.
  • When you view the Bluetooth device in Device Manager, an exclamation mark in a yellow circle is displayed for the device. When you view the properties of the device, the status for the device reports Code 43. This status code indicates that Windows has stopped the device because the device has reported problems.
This problem occurs on a system in which a Bluetooth device is connected through a universal serial bus (USB) connection.

Note The Bluetooth device may be an external USB Bluetooth transceiver, or it may be integrated into the system by using an internal USB hub. For example, a portable computer may use an internal USB hub to provide external USB ports and to connect to integrated USB-based devices.


Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Vista, x86-based versions
File nameFile versionFile sizeDateTimePlatform
Update.mumNot Applicable2,73331-Aug-200713:27Not Applicable
X86_usb.inf_31bf3856ad364e35_6.0.6000.20672_none_c95214552aa05b66.manifestNot Applicable2,35631-Aug-200713:27Not Applicable
X86_usbport.inf_31bf3856ad364e35_6.0.6000.20672_none_bc1c0cd21fbba94d.manifestNot Applicable5,87031-Aug-200713:27Not Applicable
Usbd.sys6.0.6000.206725,88831-Aug-200701:23Not Applicable
Windows Vista, 64-bit versions
File nameFile versionFile sizeDateTimePlatform
Amd64_usb.inf_31bf3856ad364e35_6.0.6000.20672_none_2570afd8e2fdcc9c.manifestNot Applicable2,35831-Aug-200713:31Not Applicable
Amd64_usbport.inf_31bf3856ad364e35_6.0.6000.20672_none_183aa855d8191a83.manifestNot Applicable5,87231-Aug-200713:31Not Applicable
Update.mumNot Applicable2,73331-Aug-200713:27Not Applicable


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.

More Information

For more information about a similar problem with a different cause, click the following article number to view the article in the Microsoft Knowledge Base:
929577 A Bluetooth device may no longer work correctly when you wake a Windows Vista-based computer from sleep
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

ID do Artigo: 941997 - Última Revisão: 21/06/2014 - Revisão: 1