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Article ID: 976972 - Last Review: October 2, 2012 - Revision: 7.0

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Symptoms

Consider the following scenario:
  • You have a computer that is running Windows 7 or Windows Server 2008 R2.
  • The computer has an NVIDIA USB Enhanced Host Controller Interface (EHCI) chipset.
  • The computer has at least 4GB of RAM.
  • You try to copy data from the computer to an external USB storage device.
In this scenario, either of the following issues occurs:
  • The computer stops responding.
  • The copy operation stops.
Notes
  • This issue may also occur when you are using USB devices other than storage devices.
  • This issue may also occur if you perform other input/output (I/O) operations on the USB storage device. In this situation, the I/O operations fail.

Resolution

Update information

The following files are available for download from the Microsoft Download Center:
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Operating systemUpdate
All supported x86-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=964205da-1ebf-465e-aa67-1af46f766ed9)
All supported x64-based versions of Windows 7 and of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=070a27e4-17f9-4e61-ad34-25278b325e28)

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

There are no prerequisites to install this update.

Restart requirement

You have to restart the computer after you apply this update.

Update replacement information

This update does not replace any other updates.

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:
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    VersionProductMilestoneService branch
    6.1.760 0.16xxxWindows 7 and Windows Server 2008 R2RTMGDR
    6.1.760 0.20xxxWindows 7 and Windows Server 2008 R2RTMLDR
  • 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 English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
For all supported x86-based versions of Windows 7
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File nameFile versionFile sizeDateTimePlatform
Usbccgp.sys6.1.7600.1638575,26413-Jul-200923:51x86
Usbhub.sys6.1.7600.16445258,56024-Oct-200904:00x86
Usbccgp.sys6.1.7600.1638575,26413-Jul-200923:51x86
Usbhub.sys6.1.7600.20557258,56024-Oct-200903:55x86
Usbd.sys6.1.7600.163855,88813-Jul-200923:51Not Applicable
Usbehci.sys6.1.7600.1644541,98424-Oct-200903:58x86
Usbhub.sys6.1.7600.16445258,56024-Oct-200904:00x86
Usbohci.sys6.1.7600.1638520,48013-Jul-200923:51x86
Usbport.sys6.1.7600.16385284,16013-Jul-200923:51x86
Usbuhci.sys6.1.7600.1638524,06413-Jul-200923:51x86
Usbd.sys6.1.7600.163855,88813-Jul-200923:51Not Applicable
Usbehci.sys6.1.7600.2055741,98424-Oct-200903:54x86
Usbhub.sys6.1.7600.20557258,56024-Oct-200903:55x86
Usbohci.sys6.1.7600.1638520,48013-Jul-200923:51x86
Usbport.sys6.1.7600.16385284,16013-Jul-200923:51x86
Usbuhci.sys6.1.7600.1638524,06413-Jul-200923:51x86
For all supported x64-based versions of Windows Server 2008 R2 and of Windows 7
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File nameFile versionFile sizeDateTimePlatform
Usbccgp.sys6.1.7600.1638598,81614-Jul-200900:06x64
Usbhub.sys6.1.7600.16445343,04024-Oct-200904:28x64
Usbccgp.sys6.1.7600.1638598,81614-Jul-200900:06x64
Usbhub.sys6.1.7600.20557343,04024-Oct-200904:24x64
Usbd.sys6.1.7600.163857,93614-Jul-200900:06x64
Usbehci.sys6.1.7600.1644551,71224-Oct-200904:27x64
Usbhub.sys6.1.7600.16445343,04024-Oct-200904:28x64
Usbohci.sys6.1.7600.1638525,60014-Jul-200900:06x64
Usbport.sys6.1.7600.16385324,60814-Jul-200900:06x64
Usbuhci.sys6.1.7600.1638530,72014-Jul-200900:06x64
Usbd.sys6.1.7600.163857,93614-Jul-200900:06x64
Usbehci.sys6.1.7600.2055751,71224-Oct-200904:24x64
Usbhub.sys6.1.7600.20557343,04024-Oct-200904:24x64
Usbohci.sys6.1.7600.1638525,60014-Jul-200900:06x64
Usbport.sys6.1.7600.16385324,60814-Jul-200900:06x64
Usbuhci.sys6.1.7600.1638530,72014-Jul-200900:06x64

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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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Applies to
  • Windows 7 Home Premium
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Web Server 2008 R2
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Standard
Keywords: 
kbqfe kbfix kbexpertiseadvanced kbsurveynew KB976972
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