This article describes a memory leak issue in the Explorer.exe process in Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. An update is available to fix this issue. Before you install this update, check out the Prerequisites section.

Symptoms

This issue only occurs when input method editor (IME) is enabled.

How to get this update

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:

Operating system

Update

All supported x86-based versions of Windows 8.1

Download Download the package now.

All supported x64-based versions of Windows 8.1

Download Download the package now.

All supported x64-based versions of Windows Server 2012 R2

Download Download the package now.

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

For more information about how to download Microsoft support files, select the following article number to view the article in the Microsoft Knowledge Base:

119591 How to get 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.

Update detail information

Prerequisites

To install this update, install April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you don't 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 doesn't replace a previously released update.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

See the terminology that Microsoft uses to describe software updates.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.

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:

    Version

    Product

    Milestone

    Service branch

    6.3.960 0.18 xxx

    Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

    RTM

    GDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed 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 aren't listed, are signed with a Microsoft digital signature.

x86 Windows 8.1

File name

File version

File size

Date

Time

Platform

Msctf.dll

6.3.9600.18081

1,124,384

03-Oct-2015

19:41

x86

Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Msctf.dll

6.3.9600.18081

949,296

03-Oct-2015

19:49

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Msctf.dll

6.3.9600.18081

1,385,280

03-Oct-2015

19:41

x64

Msctf.dll

6.3.9600.18081

1,124,384

03-Oct-2015

19:41

x86


x86 Windows 8.1

File property

Value

File name

Update.mum

File version

Not applicable

File size

1,804

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

File name

X86_b2952f605591445156007f8cc9204655_31bf3856ad364e35_6.3.9600.18081_none_d136e28bf809ed3e.manifest

File version

Not applicable

File size

715

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

File name

X86_microsoft-windows-t..icesframework-msctf_31bf3856ad364e35_6.3.9600.18081_none_0a6040810a619e9f.manifest

File version

Not applicable

File size

40,106

Date (UTC)

06-Oct-2015

Time (UTC)

03:31

Platform

Not applicable

Windows RT 8.1

File property

Value

File name

Arm_66b567c37423f257272bba5fe5c2f240_31bf3856ad364e35_6.3.9600.18081_none_c16cff59c21ccc19.manifest

File version

Not applicable

File size

715

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

File name

Arm_microsoft-windows-t..icesframework-msctf_31bf3856ad364e35_6.3.9600.18081_none_0a62b2d90a5ebd65.manifest

File version

Not applicable

File size

40,106

Date (UTC)

06-Oct-2015

Time (UTC)

03:28

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,803

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property

Value

File name

Amd64_3e3f7f09dec342a631ac4d5926707844_31bf3856ad364e35_6.3.9600.18081_none_03631241c1366484.manifest

File version

Not applicable

File size

719

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

File name

Amd64_b2952f605591445156007f8cc9204655_31bf3856ad364e35_6.3.9600.18081_none_2d557e0fb0675e74.manifest

File version

Not applicable

File size

717

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

File name

Amd64_microsoft-windows-t..icesframework-msctf_31bf3856ad364e35_6.3.9600.18081_none_667edc04c2bf0fd5.manifest

File version

Not applicable

File size

40,110

Date (UTC)

06-Oct-2015

Time (UTC)

03:35

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,935

Date (UTC)

03-Oct-2015

Time (UTC)

19:50

Platform

Not applicable

File name

X86_microsoft-windows-t..icesframework-msctf_31bf3856ad364e35_6.3.9600.18081_none_0a6040810a619e9f.manifest

File version

Not applicable

File size

40,106

Date (UTC)

06-Oct-2015

Time (UTC)

03:35

Platform

Not applicable


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