This article describes an issue that occurs when you pair a Bluetooth device in Windows 8.1 or Windows RT 8.1. A hotfix is available to resolve this issue. Before you install this hotfix, check out the Prerequisites section.

Symptoms

This issue occurs when you pair a Bluetooth Smart (low energy) device. After you confirm the error message, all discoverable Bluetooth devices under new Windows UI disappear.

Resolution

Hotfix information

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.


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.

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, submit a request to 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

To apply this hotfix, you must have update 2919355 installed in Windows 8.1.

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.

The global version of this update 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 8.1 file information and 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

    6.3.960 0.16 xxx

    Windows RT 8.1

    RTM

    GDR

    6.3.960 0.17 xxx

    Windows 8.1 and Windows RT 8.1

    RTM

    GDR

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

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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 8.1

File name

File version

File size

Date

Time

Platform

Bthenum.sys

6.3.9600.17896

39,424

02-Jun-2015

16:49

x86

Bthmini.sys

6.3.9600.17896

23,552

02-Jun-2015

16:49

x86

Bthport.sys

6.3.9600.17896

1,014,784

02-Jun-2015

16:48

x86

Bthusb.sys

6.3.9600.17896

60,928

02-Jun-2015

16:49

x86

Fsquirt.exe

6.3.9600.17415

229,376

29-Oct-2014

01:28

x86

For all supported x64-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Bthenum.sys

6.3.9600.17896

53,248

02-Jun-2015

17:42

x64

Bthmini.sys

6.3.9600.17896

31,744

02-Jun-2015

17:43

x64

Bthport.sys

6.3.9600.17896

1,201,664

02-Jun-2015

17:41

x64

Bthusb.sys

6.3.9600.17896

81,920

02-Jun-2015

17:42

x64

Fsquirt.exe

6.3.9600.17415

241,152

29-Oct-2014

02:03

x64

For all supported Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Bthenum.sys

6.3.9600.17896

39,936

02-Jun-2015

16:22

Not applicable

Bthmini.sys

6.3.9600.17896

25,600

02-Jun-2015

16:22

Not applicable

Bthport.sys

6.3.9600.17896

949,248

02-Jun-2015

16:22

Not applicable

Bthusb.sys

6.3.9600.17896

59,904

02-Jun-2015

16:22

Not applicable

Fsquirt.exe

6.3.9600.16384

226,816

22-Aug-2013

02:39

Not applicable


Additional file information


Additional file information for Windows 8.1


Additional files for all supported x86-based versions of Windows 8.1

File property

Value

File name

X86_bth.inf_31bf3856ad364e35_6.3.9600.17896_none_06dbac20d73126d6.manifest

File version

Not applicable

File size

4,629

Date (UTC)

03-Jun-2015

Time (UTC)

01:59

Platform

Not applicable


Additional files for all supported x64-based versions of Windows 8.1

File property

Value

File name

Amd64_bth.inf_31bf3856ad364e35_6.3.9600.17896_none_62fa47a48f8e980c.manifest

File version

Not applicable

File size

4,633

Date (UTC)

03-Jun-2015

Time (UTC)

02:03

Platform

Not applicable

Additional files for all supported Windows RT 8.1

File property

Value

File name

Arm_bth.inf_31bf3856ad364e35_6.3.9600.17896_none_06de1e78d72e459c.manifest

File version

Not applicable

File size

4,629

Date (UTC)

03-Jun-2015

Time (UTC)

01:56

Platform

Not applicable




Status

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

References

See the terminology that Microsoft uses to describe software updates.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Any additional feedback? (Optional)

Thank you for your feedback!

×