Symptoms

Assume that you have a Windows 7-based computer that is running on an Intel Atom Z670 processor and on an Intel SM35 Express chipset. In this situation, you may experience functionality issues on full-speed and low-speed USB devices. For example, you may experience the following issues:

  • The response time from a USB touchscreen device or mouse is slower than expected.

  • Bluetooth devices stop responding.

Note To recover from this issue, the Bluetooth device or the computer must be restarted. If the Bluetooth device is an internal device, you must power-cycle the computer.

Cause

This issue occurs because the USB Enhanced Host Controller Interface (EHCI) host controller in Windows 7 resets the USB device when the USB EHCI host controller reports missed micro-frame errors.

Note For more information about this issue, see the Intel SM35 Express chipset specification update.

Resolution

This hotfix enables a mechanism to retry missed micro-frame errors by using the Soft-Retry functionality. For more information about the Soft-Retry functionality, click the following article number to view the article in the Microsoft Knowledge Base:

908673 Problems may occur when you try to transfer files to or from a device that is connected to a USB 2.0 hub Note The hotfix that is introduced in this KB article is updated to a new version. This new version of the hotfix resolves an issue in which a "Device driver software was not successfully installed" balloon is displayed when you install a new USB device. This issue occurs if you install the earlier version of the hotfix. You must reinstall the hotfix if the file versions of the USB drivers are older than the file versions that are listed in this KB article.

To check the file versions of the USB drivers that are installed on your computer, follow these steps:

  1. Locate the %WINDIR%\System32\Drivers folder by using Windows Explorer.

  2. Right-click Usbehci.sys, and then click Properties.

  3. Select the Details tab, and then check the value of the File version property.

  4. You can determine whether you have the earlier version of the hotfix installed if the value matches one of the following values:

    • 6.1.7600.16791

    • 6.1.7600.20940

    • 6.1.7601.17591

    • 6.1.7601.21700

  5. Repeat step 1 to step 4 for Usbhub.sys and for Usbport.sys.

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 Web site:

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 be running Windows 7 or Windows 7 Service Pack 1 (SP1).

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you must update the registry by using the latest Intel chipset software installation utility.

Restart requirement

You must 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
    0.21xxx

    Windows 7

    RTM

    LDR

    6.1.760
    1.17xxx

    Windows 7

    SP1

    GDR

    6.1.760
    1.21xxx

    Windows 7

    SP1

    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) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7" section. MUM and 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

Usbccgp.sys

6.1.7600.16888

76,288

17-Sep-2011

23:25

x86

Usbhub.sys

6.1.7600.16888

258,560

17-Sep-2011

23:26

x86

Usbccgp.sys

6.1.7600.21058

76,288

21-Sep-2011

03:00

x86

Usbhub.sys

6.1.7600.21058

258,560

21-Sep-2011

03:00

x86

Usbccgp.sys

6.1.7601.17695

76,288

17-Sep-2011

23:15

x86

Usbhub.sys

6.1.7601.17695

258,560

17-Sep-2011

23:16

x86

Usbccgp.sys

6.1.7601.21824

76,288

21-Sep-2011

04:13

x86

Usbhub.sys

6.1.7601.21824

258,560

21-Sep-2011

04:14

x86

Usbd.sys

6.1.7600.16888

5,888

17-Sep-2011

23:25

x86

Usbehci.sys

6.1.7600.16888

43,008

17-Sep-2011

23:25

x86

Usbhub.sys

6.1.7600.16888

258,560

17-Sep-2011

23:26

x86

Usbohci.sys

6.1.7600.16888

20,480

17-Sep-2011

23:25

x86

Usbport.sys

6.1.7600.16888

284,160

17-Sep-2011

23:25

x86

Usbuhci.sys

6.1.7600.16888

24,064

17-Sep-2011

23:25

x86

Usbd.sys

6.1.7600.21058

5,888

21-Sep-2011

03:00

x86

Usbehci.sys

6.1.7600.21058

43,008

21-Sep-2011

03:00

x86

Usbhub.sys

6.1.7600.21058

258,560

21-Sep-2011

03:00

x86

Usbohci.sys

6.1.7600.21058

20,480

21-Sep-2011

03:00

x86

Usbport.sys

6.1.7600.21058

284,160

21-Sep-2011

03:00

x86

Usbuhci.sys

6.1.7600.21058

24,064

21-Sep-2011

03:00

x86

Usbd.sys

6.1.7601.17695

5,888

17-Sep-2011

23:15

x86

Usbehci.sys

6.1.7601.17695

43,008

17-Sep-2011

23:15

x86

Usbhub.sys

6.1.7601.17695

258,560

17-Sep-2011

23:16

x86

Usbohci.sys

6.1.7601.17695

20,480

17-Sep-2011

23:15

x86

Usbport.sys

6.1.7601.17695

284,672

17-Sep-2011

23:16

x86

Usbuhci.sys

6.1.7601.17695

24,064

17-Sep-2011

23:15

x86

Usbd.sys

6.1.7601.21824

5,888

21-Sep-2011

04:13

x86

Usbehci.sys

6.1.7601.21824

43,008

21-Sep-2011

04:13

x86

Usbhub.sys

6.1.7601.21824

258,560

21-Sep-2011

04:14

x86

Usbohci.sys

6.1.7601.21824

20,480

21-Sep-2011

04:13

x86

Usbport.sys

6.1.7601.21824

284,672

21-Sep-2011

04:13

x86

Usbuhci.sys

6.1.7601.21824

24,064

21-Sep-2011

04:13

x86

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Usbccgp.sys

6.1.7600.16888

99,328

17-Sep-2011

23:51

x64

Usbhub.sys

6.1.7600.16888

343,040

17-Sep-2011

23:52

x64

Usbccgp.sys

6.1.7600.21058

99,328

21-Sep-2011

03:37

x64

Usbhub.sys

6.1.7600.21058

343,040

21-Sep-2011

03:37

x64

Usbccgp.sys

6.1.7601.17695

99,328

17-Sep-2011

23:55

x64

Usbhub.sys

6.1.7601.17695

343,040

17-Sep-2011

23:56

x64

Usbccgp.sys

6.1.7601.21824

99,328

21-Sep-2011

04:07

x64

Usbhub.sys

6.1.7601.21824

343,040

21-Sep-2011

04:08

x64

Usbd.sys

6.1.7600.16888

7,936

17-Sep-2011

23:51

x64

Usbehci.sys

6.1.7600.16888

52,224

17-Sep-2011

23:51

x64

Usbhub.sys

6.1.7600.16888

343,040

17-Sep-2011

23:52

x64

Usbohci.sys

6.1.7600.16888

25,600

17-Sep-2011

23:51

x64

Usbport.sys

6.1.7600.16888

324,608

17-Sep-2011

23:51

x64

Usbuhci.sys

6.1.7600.16888

30,720

17-Sep-2011

23:51

x64

Usbd.sys

6.1.7600.21058

7,936

21-Sep-2011

03:37

x64

Usbehci.sys

6.1.7600.21058

52,224

21-Sep-2011

03:37

x64

Usbhub.sys

6.1.7600.21058

343,040

21-Sep-2011

03:37

x64

Usbohci.sys

6.1.7600.21058

25,600

21-Sep-2011

03:37

x64

Usbport.sys

6.1.7600.21058

324,608

21-Sep-2011

03:37

x64

Usbuhci.sys

6.1.7600.21058

30,720

21-Sep-2011

03:37

x64

Usbd.sys

6.1.7601.17695

7,936

17-Sep-2011

23:55

x64

Usbehci.sys

6.1.7601.17695

52,736

17-Sep-2011

23:55

x64

Usbhub.sys

6.1.7601.17695

343,040

17-Sep-2011

23:56

x64

Usbohci.sys

6.1.7601.17695

25,600

17-Sep-2011

23:55

x64

Usbport.sys

6.1.7601.17695

325,120

17-Sep-2011

23:55

x64

Usbuhci.sys

6.1.7601.17695

30,720

17-Sep-2011

23:55

x64

Usbd.sys

6.1.7601.21824

7,936

21-Sep-2011

04:07

x64

Usbehci.sys

6.1.7601.21824

52,736

21-Sep-2011

04:07

x64

Usbhub.sys

6.1.7601.21824

343,040

21-Sep-2011

04:08

x64

Usbohci.sys

6.1.7601.21824

25,600

21-Sep-2011

04:07

x64

Usbport.sys

6.1.7601.21824

325,120

21-Sep-2011

04:07

x64

Usbuhci.sys

6.1.7601.21824

30,720

21-Sep-2011

04:07

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

For more information about the USB EHCI specification, visit the following Intel website:

General information about the EHCI specification Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

Additional file information

Additional file information for Windows 7

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

File name

X86_usb.inf_31bf3856ad364e35_6.1.7600.16888_none_cad1c7756fc326a8.manifest

File version

Not Applicable

File size

3,060

Date (UTC)

18-Sep-2011

Time (UTC)

01:36

File name

X86_usb.inf_31bf3856ad364e35_6.1.7600.21058_none_cb7bac2688c8a5e1.manifest

File version

Not Applicable

File size

3,060

Date (UTC)

21-Sep-2011

Time (UTC)

05:06

File name

X86_usb.inf_31bf3856ad364e35_6.1.7601.17695_none_ccaa53b16cf46280.manifest

File version

Not Applicable

File size

3,060

Date (UTC)

18-Sep-2011

Time (UTC)

01:26

File name

X86_usb.inf_31bf3856ad364e35_6.1.7601.21824_none_cd7ea18c85da2283.manifest

File version

Not Applicable

File size

3,060

Date (UTC)

21-Sep-2011

Time (UTC)

06:46

File name

X86_usbport.inf_31bf3856ad364e35_6.1.7600.16888_none_bd9bbff264de748f.manifest

File version

Not Applicable

File size

6,144

Date (UTC)

18-Sep-2011

Time (UTC)

01:30

File name

X86_usbport.inf_31bf3856ad364e35_6.1.7600.21058_none_be45a4a37de3f3c8.manifest

File version

Not Applicable

File size

6,144

Date (UTC)

21-Sep-2011

Time (UTC)

05:01

File name

X86_usbport.inf_31bf3856ad364e35_6.1.7601.17695_none_bf744c2e620fb067.manifest

File version

Not Applicable

File size

6,144

Date (UTC)

18-Sep-2011

Time (UTC)

01:25

File name

X86_usbport.inf_31bf3856ad364e35_6.1.7601.21824_none_c0489a097af5706a.manifest

File version

Not Applicable

File size

6,144

Date (UTC)

21-Sep-2011

Time (UTC)

06:44

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

File name

Amd64_usb.inf_31bf3856ad364e35_6.1.7600.16888_none_26f062f9282097de.manifest

File version

Not Applicable

File size

3,064

Date (UTC)

18-Sep-2011

Time (UTC)

02:25

File name

Amd64_usb.inf_31bf3856ad364e35_6.1.7600.21058_none_279a47aa41261717.manifest

File version

Not Applicable

File size

3,064

Date (UTC)

21-Sep-2011

Time (UTC)

05:58

File name

Amd64_usb.inf_31bf3856ad364e35_6.1.7601.17695_none_28c8ef352551d3b6.manifest

File version

Not Applicable

File size

3,064

Date (UTC)

18-Sep-2011

Time (UTC)

02:26

File name

Amd64_usb.inf_31bf3856ad364e35_6.1.7601.21824_none_299d3d103e3793b9.manifest

File version

Not Applicable

File size

3,064

Date (UTC)

21-Sep-2011

Time (UTC)

07:29

File name

Amd64_usbport.inf_31bf3856ad364e35_6.1.7600.16888_none_19ba5b761d3be5c5.manifest

File version

Not Applicable

File size

6,148

Date (UTC)

18-Sep-2011

Time (UTC)

02:24

File name

Amd64_usbport.inf_31bf3856ad364e35_6.1.7600.21058_none_1a644027364164fe.manifest

File version

Not Applicable

File size

6,148

Date (UTC)

21-Sep-2011

Time (UTC)

05:57

File name

Amd64_usbport.inf_31bf3856ad364e35_6.1.7601.17695_none_1b92e7b21a6d219d.manifest

File version

Not Applicable

File size

6,148

Date (UTC)

18-Sep-2011

Time (UTC)

02:25

File name

Amd64_usbport.inf_31bf3856ad364e35_6.1.7601.21824_none_1c67358d3352e1a0.manifest

File version

Not Applicable

File size

6,148

Date (UTC)

21-Sep-2011

Time (UTC)

07:27

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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