USB devices that are connected to a computer may not work after the computer is idle for more than one hour Windows 7 or in Windows Server 2008 R2

Symptoms

You connect a USB device to a computer that is running Windows 7 or Windows Server 2008 R2. When the computer is idle for more than one hour, the USB device may not work any longer. When this problem occurs, the USB device is not displayed in Device Manager.

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 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, your computer must be running Windows 7 or Windows Server 2008 R2.

Registry information

To applythis hotfix, you do not have to make any changes to the registry.

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 English (United States) 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 and Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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 Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. 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

Usbhub.sys

6.1.7600.20589

258,560

04-Dec-2009

06:51

x86

Usbehci.sys

6.1.7600.20589

41,984

04-Dec-2009

06:51

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Usbhub.sys

6.1.7600.20589

343,040

04-Dec-2009

07:26

x64

Usbehci.sys

6.1.7600.20589

51,712

04-Dec-2009

07:26

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 and for Windows Server 2008 R2

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

File name

Package_1_for_kb978258~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

2,527

Date (UTC)

05-Dec-2009

Time (UTC)

00:17

Platform

Not applicable

File name

Package_2_for_kb978258~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

2,527

Date (UTC)

05-Dec-2009

Time (UTC)

00:17

Platform

Not applicable

File name

Package_for_kb978258_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

1,714

Date (UTC)

05-Dec-2009

Time (UTC)

00:17

Platform

Not applicable

File name

X86_usb.inf_31bf3856ad364e35_6.1.7600.20589_none_cb5c5cf288dfeb2d.manifest

File version

Not applicable

File size

2,840

Date (UTC)

05-Dec-2009

Time (UTC)

00:21

Platform

Not applicable

File name

X86_usbport.inf_31bf3856ad364e35_6.1.7600.20589_none_be26556f7dfb3914.manifest

File version

Not applicable

File size

5,540

Date (UTC)

05-Dec-2009

Time (UTC)

00:21

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_usb.inf_31bf3856ad364e35_6.1.7600.20589_none_277af876413d5c63.manifest

File version

Not applicable

File size

2,844

Date (UTC)

05-Dec-2009

Time (UTC)

00:24

Platform

Not applicable

File name

Amd64_usbport.inf_31bf3856ad364e35_6.1.7600.20589_none_1a44f0f33658aa4a.manifest

File version

Not applicable

File size

5,544

Date (UTC)

05-Dec-2009

Time (UTC)

00:24

Platform

Not applicable

File name

Package_1_for_kb978258~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,541

Date (UTC)

05-Dec-2009

Time (UTC)

00:17

Platform

Not applicable

File name

Package_2_for_kb978258~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,541

Date (UTC)

05-Dec-2009

Time (UTC)

00:17

Platform

Not applicable

File name

Package_for_kb978258_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

1,724

Date (UTC)

05-Dec-2009

Time (UTC)

00:17

Platform

Not applicable

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