Compatibility update for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: May 2014

Applies to: Windows 8.1 EnterpriseWindows 8.1Windows 8.1 Pro

Summary


This compatibility update is a software update that improves the compatibility experience in Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2. Microsoft regularly releases Windows compatibility updates to improve the overall user experience.

This compatibility update is dated May 2014.

For more information about the improvements, see the "Applications or devices that experience a change in behavior after you install this update" section and the "Applications and devices that are included in this update" section.

More Information


Update information

How to obtain this update

This compatibility update is offered when you upgrade to the release version of Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2.

The kinds of problems that are resolved by application compatibility updates

When you try to install and run certain games or applications in Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2, you may experience one or more of the following symptoms:
  • The game, the application, or the driver is installed incorrectly.
  • The game, the application, or the driver causes system instability.
  • The primary functions of the game, the application, or the firmware works incorrectly.

Applications or devices that experience a change in behavior after you install this update

The following table lists the applications and devices that were included in this cumulative update package. This table also describes the behavior of these applications and devices after you install the update.

Compatibility updates trigger several changes in Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2. The following are the most common.
Hard block
This prevents an application that is incompatible with Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2 from running on the system.

Note Microsoft enables Windows to put a hard block on a non-Microsoft application only if the manufacturer is notified.
Soft block
This notifies you when a primary function of the application may not work or may cause application instability.
Driver block
This may block an existing driver on your computer. When the driver is migrated during the upgrade, an Inbox driver will be installed.

Applications and devices that are included in this update

Applications or DevicesVersionBehavior after you install the update
Marcrium ReflectUp to 5.0.*Blocks upgrade if the application is installed to prevent data loss.
Windows Mobile Device Center6.1.*Informs the user to reinstall this application after upgrade.
Kaspersky Endpoint SecurityUp to 10.2.*Blocks upgrade if the application is installed to prevent data loss.
Vmware Player10.*Informs the user to reinstall this application after upgrade.
Avira Antivirus2014Informs the user to reinstall this application after upgrade.
MG25-Terran2+G USB 3.0 HDDnot availableImproves user experience.

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 RT 8.1, Windows 8.1, and Windows Server 2012 R2

Additional file information for Windows RT 8.1
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Date (UTC)18-Apr-2014
Time (UTC)07:05
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Date (UTC)18-Apr-2014
Time (UTC)07:05
PlatformNot applicable
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Date (UTC)18-Apr-2014
Time (UTC)07:05
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File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)07:05
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File versionNot applicable
File size3,312
Date (UTC)18-Apr-2014
Time (UTC)07:05
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File versionNot applicable
File size2,558
Date (UTC)17-Apr-2014
Time (UTC)23:24
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Date (UTC)18-Apr-2014
Time (UTC)07:05
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File versionNot applicable
File size2,555
Date (UTC)18-Apr-2014
Time (UTC)07:05
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File versionNot applicable
File size1,867
Date (UTC)17-Apr-2014
Time (UTC)23:24
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,804
Date (UTC)18-Apr-2014
Time (UTC)07:05
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Additional files for all supported x86-based versions of Windows 8.1
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,805
Date (UTC)18-Apr-2014
Time (UTC)06:58
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File nameX86_a3dacb867150f915b4ded9815dedd694_31bf3856ad364e35_6.3.9600.17098_none_4f00920ac7f5dd8c.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)06:58
PlatformNot applicable
File nameX86_b81de2c77b4bb96b1984544b509f1df7_31bf3856ad364e35_6.3.9600.17098_none_04f385aa443bb7e1.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)06:58
PlatformNot applicable
File nameX86_c911708c0f88e5bba2a3ad3f8ec4c32b_31bf3856ad364e35_6.3.9600.17098_none_2b65f393e03564bf.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)06:58
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File versionNot applicable
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Date (UTC)18-Apr-2014
Time (UTC)06:58
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File versionNot applicable
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Date (UTC)18-Apr-2014
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File size2,558
Date (UTC)17-Apr-2014
Time (UTC)22:47
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File versionNot applicable
File size3,310
Date (UTC)18-Apr-2014
Time (UTC)06:58
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Date (UTC)18-Apr-2014
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File nameX86_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17098_none_a0c1132f0de53c8e.manifest
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Date (UTC)17-Apr-2014
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Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File propertyValue
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Date (UTC)18-Apr-2014
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Date (UTC)18-Apr-2014
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References


For more information about previously released compatibility update for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 in 2014, click the following article numbers to view the articles in the Microsoft Knowledge Base:
  • 2917931 Compatibility update is available for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2: February 2014
  • 2930168 Compatibility update is available for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2: March 2014
  • 2933810 Compatibility update is available for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: April 2014

Third-party information disclaimer

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.