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Article ID: 2529073 - Last Review: July 12, 2013 - Revision: 5.1

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Symptoms

After you install Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 Service Pack 1 (SP1), binary files in some USB drivers are not updated. For example, the Usbport.sys, Usbehci.sys, and Winusb.sys binary files are not updated.

Notes
  • This issue may not occur if you have third-party USB drivers installed.
  • This issue does not occur after you perform a clean install of a slipstreamed Windows 7 SP1 image or of a slipstreamed Windows Server 2008 R2 SP1 image.
  • If your computer is not USB capable, this update may not update some files in the following directory:
    %windir%\system32\drivers
    This is more likely to occur on Virtual Machines.

Cause

This issue occurs because both the Usbport.inf file and the Usb.inf file refer to the Usbhub.sys file. However, Windows 7 SP1 and Windows Server 2008 R2 SP1 cannot handle this situation. Therefore, some USB related binaries are not copied correctly when you install SP1 for these operating systems.

Resolution

Update information

How to obtain this update

This update is available from the Microsoft Update website and from the Microsoft Downoad Centre.

To obtain the update from the Microsoft Update website, visit the following Microsoft website:
http://update.microsoft.com (http://update.microsoft.com)


The following files are available for download from the Microsoft Download Center:
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Operating systemUpdate
All supported x64-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=3de148ce-5acb-4edd-8e9a-d1bb903e9823)
All supported x86-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=dcb38375-9976-4df4-af20-0c4f259f0ed1)
All supported x64-based versions of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=202b5e2e-ac91-42a6-95ba-621e4da8ee4c)
All supported IA-64-based versions of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=3c3cc550-cd1b-485d-b770-e729c94b52cb)
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  (http://support.microsoft.com/kb/119591/ ) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

To apply this update, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 SP1
  • Windows Server 2008 R2
  • Windows Server 2008 R2 SP1

Registry information

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

Restart requirement

You must restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.

File information

Click here to view or hide detailed information

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  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Click here to view or hide detailed information

You may also encounter the following issues when you try to install this update:
  • The update installation fails.
  • The system keeps reminding you to install this update although you already installed it.
  • The desktop does not load.
If you encounter one if the issues mentioned above, you may try the following methods.

Click here to view or hide detailed information

Applies to
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
Keywords: 
kbqfe kbhotfixserver kbfix kbexpertiseinter kbexpertisebeginner kbsurveynew atdownload kbcip KB2529073
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