Article ID: 2966804 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You install update 2919355 on a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2.
  • You have a device that uses the AVStream class (such as a Bluetooth, USB, or PCI device) connected to the computer.
  • The computer sleeps or wakes.
In this scenario, the computer freezes or crashes.

Cause

This issue occurs because of a race condition in the power management threads in the Ks.sys file.

Resolution

To resolve this issue, install the update that is described in this article.

Update information

How to obtain this update

Windows Update
This update is available from Windows Update.
Microsoft Download Center
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 8.1
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Download
Download the package now.
All supported x64-based versions of Windows 8.1
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Download
Download the package now.
All supported x64-based versions of Windows Server 2012 R2
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Download
Download the package now.

Note The update for Windows RT 8.1 can be obtained only from Windows Update.

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 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 Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

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

Update replacement information

This update does not replace a previously released update.

File information

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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.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are 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
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File nameFile versionFile sizeDateTimePlatform
Ks.sys6.3.9600.17119218,11208-May-201423:08x86
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For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
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File nameFile versionFile sizeDateTimePlatform
Ks.sys6.3.9600.17119295,42408-May-201423:06x64
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For Windows RT 8.1
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File nameFile versionFile sizeDateTimePlatform
Ks.sys6.3.9600.17119202,75208-May-201423:02Not applicable
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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 the AVStream class, go to the following Microsoft website:
General information about the AVStream class
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

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Additional file information for Windows 8.1 and Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1
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File propertyValue
File nameX86_32b1a130c81624f3760ab029623c9c33_31bf3856ad364e35_6.3.9600.17119_none_48f97b5d3e958437.manifest
File versionNot applicable
File size703
Date (UTC)09-May-2014
Time (UTC)10:46
File nameX86_microsoft-windows-kernelstreaming_31bf3856ad364e35_6.3.9600.17119_none_ec711d30b1408afa.manifest
File versionNot applicable
File size6,075
Date (UTC)09-May-2014
Time (UTC)00:43
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Additional files for all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
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File propertyValue
File nameAmd64_076624a03afd8b55994e67041d738cce_31bf3856ad364e35_6.3.9600.17119_none_e68db7d9b5d497d0.manifest
File versionNot applicable
File size707
Date (UTC)09-May-2014
Time (UTC)11:02
File nameAmd64_microsoft-windows-kernelstreaming_31bf3856ad364e35_6.3.9600.17119_none_488fb8b4699dfc30.manifest
File versionNot applicable
File size6,079
Date (UTC)09-May-2014
Time (UTC)02:49
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Additional files for Windows RT 8.1
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File propertyValue
File nameArm_9957d6e5e9666609ede62196d64d09ae_31bf3856ad364e35_6.3.9600.17119_none_2b5208070702414a.manifest
File versionNot applicable
File size703
Date (UTC)09-May-2014
Time (UTC)10:41
File nameArm_microsoft-windows-kernelstreaming_31bf3856ad364e35_6.3.9600.17119_none_ec738f88b13da9c0.manifest
File versionNot applicable
File size6,075
Date (UTC)09-May-2014
Time (UTC)00:14
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Properties

Article ID: 2966804 - Last Review: June 10, 2014 - Revision: 1.0
Applies to
  • Windows 8.1 Enterprise
  • Windows 8.1 Pro
  • Windows 8.1
  • Windows RT 8.1
  • Windows Server 2012 R2 Datacenter
  • Windows Server 2012 R2 Essentials
  • Windows Server 2012 R2 Foundation
  • Windows Server 2012 R2 Standard
Keywords: 
kbfix kbsurveynew kbexpertiseinter atdownload KB2966804

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