This article describes an issue that occurs when you switch to another user 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, see the Prerequisites section.

Symptoms

This issue occurs when you use a third-party credential provider and log on to the system by using a certificate.

Cause

This issue occurs because of an access violation when the third-party credential provider calls the CryptUIDlgSelectCertificate function to show the certificate.

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 an Optional 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 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.

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. Or, install Service Pack 1 for Windows 7 or Windows Server 2008 R2. Or, install Service Pack 2 for Windows Vista and for Windows Server 2008.

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 are not listed, are signed with a Microsoft digital signature.

x86 Windows 8.1

File name

File version

File size

Date

Time

Platform

Authui-ppdlic.xrm-ms

Not applicable

2,894

29-Sep-2015

06:43

Not applicable

Authui.dll

6.3.9600.18066

2,462,720

28-Sep-2015

18:24

x86

Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Authui-ppdlic.xrm-ms

Not applicable

2,894

29-Sep-2015

08:12

Not applicable

Authui.dll

6.3.9600.18066

2,284,544

28-Sep-2015

18:26

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Authui-ppdlic.xrm-ms

Not applicable

2,894

29-Sep-2015

08:17

Not applicable

Authui.dll

6.3.9600.18066

2,775,552

28-Sep-2015

18:31

x64

Authui-ppdlic.xrm-ms

Not applicable

2,894

29-Sep-2015

06:43

Not applicable

Authui.dll

6.3.9600.18066

2,462,720

28-Sep-2015

18:24

x86


x86 Windows 8.1

File property

Value

File name

Update.mum

File version

Not applicable

File size

1,800

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

File name

X86_3d2a2a6e025bb5fe40df04c62de912f0_31bf3856ad364e35_6.3.9600.18066_none_974264a1a5325fc9.manifest

File version

Not applicable

File size

719

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

File name

X86_microsoft-windows-a..on-authui-component_31bf3856ad364e35_6.3.9600.18066_none_718e7c972b5f85e0.manifest

File version

Not applicable

File size

65,628

Date (UTC)

29-Sep-2015

Time (UTC)

06:46

Platform

Not applicable

Windows RT 8.1

File property

Value

File name

Arm_8cf7c1dda15a4c77172f1422fbf1fb1a_31bf3856ad364e35_6.3.9600.18066_none_07511fdaeb65f513.manifest

File version

Not applicable

File size

719

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

File name

Arm_microsoft-windows-a..on-authui-component_31bf3856ad364e35_6.3.9600.18066_none_7190eeef2b5ca4a6.manifest

File version

Not applicable

File size

65,628

Date (UTC)

29-Sep-2015

Time (UTC)

08:13

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,800

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property

Value

File name

Amd64_2958f0fafe411cb937dab25600fed119_31bf3856ad364e35_6.3.9600.18066_none_d099b3d2b5921f3e.manifest

File version

Not applicable

File size

723

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

File name

Amd64_3d2a2a6e025bb5fe40df04c62de912f0_31bf3856ad364e35_6.3.9600.18066_none_f36100255d8fd0ff.manifest

File version

Not applicable

File size

721

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

File name

Amd64_microsoft-windows-a..on-authui-component_31bf3856ad364e35_6.3.9600.18066_none_cdad181ae3bcf716.manifest

File version

Not applicable

File size

65,636

Date (UTC)

29-Sep-2015

Time (UTC)

08:19

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,709

Date (UTC)

29-Sep-2015

Time (UTC)

12:15

Platform

Not applicable

File name

X86_microsoft-windows-a..on-authui-component_31bf3856ad364e35_6.3.9600.18066_none_718e7c972b5f85e0.manifest

File version

Not applicable

File size

65,628

Date (UTC)

29-Sep-2015

Time (UTC)

06:46

Platform

Not applicable


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