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Symptoms

You put a computer that is running Windows 7 to sleep. After you resume the computer, a Bluetooth device stops working. If you open Device Manager to check the device status, you receive the following error message in the Device status box:

Windows has stopped this device because it has reported problems. (Code 43)

Also, the following event is logged in the System log in Event Viewer:

Log Name: System
Source: BTUSB
Event ID: 17
Details:
The local Bluetooth adapter has failed in an undetermined manner and will not be used. The driver has been unloaded.

Resolution

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 the problem described in this article. 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 website:

http://support.microsoft.com/contactus/?ws=supportNote 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.

Prerequisites

There are no prerequisites.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 7 file information notes


  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.1.760
    0.16xxx

    Windows 7

    RTM

    GDR

    6.1.760
    0.20xxx

    Windows 7

    RTM

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows 7" section. MANIFEST files and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Bthport.sys

6.1.7600.16620

393,216

23-Jun-2010

06:15

x86

Bthusb.sys

6.1.7600.16620

60,416

23-Jun-2010

06:15

x86

Bthport.sys

6.1.7600.20741

393,216

23-Jun-2010

06:14

x86

Bthusb.sys

6.1.7600.20741

60,416

23-Jun-2010

06:14

x86

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Bthport.sys

6.1.7600.16620

552,448

23-Jun-2010

06:42

x64

Bthusb.sys

6.1.7600.16620

80,384

23-Jun-2010

06:42

x64

Bthport.sys

6.1.7600.20741

552,448

23-Jun-2010

06:33

x64

Bthusb.sys

6.1.7600.20741

80,384

23-Jun-2010

06:33

x64

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, 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

Additional file information

Additional file information for Windows 7

Additional files for all supported x86-based versions of Windows 7

File name

X86_bth.inf_31bf3856ad364e35_6.1.7600.16620_none_7256fe271cb89e22.manifest

File version

Not applicable

File size

3,492

Date (UTC)

24-Jun-2010

Time (UTC)

01:43

Platform

Not applicable


File name

X86_bth.inf_31bf3856ad364e35_6.1.7600.20741_none_72cbfb6435e58f25.manifest

File version

Not applicable

File size

3,492

Date (UTC)

24-Jun-2010

Time (UTC)

01:43

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7

File name

Amd64_bth.inf_31bf3856ad364e35_6.1.7600.16620_none_ce7599aad5160f58.manifest

File version

Not applicable

File size

3,496

Date (UTC)

24-Jun-2010

Time (UTC)

01:40

Platform

Not applicable


File name

Amd64_bth.inf_31bf3856ad364e35_6.1.7600.20741_none_ceea96e7ee43005b.manifest

File version

Not applicable

File size

3,496

Date (UTC)

24-Jun-2010

Time (UTC)

01:40

Platform

Not applicable

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