This article describes an issue in which an "Access violation" error occurs and an application that uses private keys crashes in Windows 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

Assume that you're using certutil or you have an application that's used to enumerate or remove Trusted Platform Module (TPM)-protected private keys from computers when associated certificates are removed from the computers. This issue occurs when the keys don't exist or the user doesn't have access to the keys.

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

Pcpksp.dll

6.3.9600.18086

53,248

08-Oct-2015

15:50

x86

Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Pcpksp.dll

6.3.9600.18086

48,128

08-Oct-2015

15:34

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Pcpksp.dll

6.3.9600.18086

60,928

08-Oct-2015

16:11

x64

Pcpksp.dll

6.3.9600.18086

53,248

08-Oct-2015

15:50

x86


x86 Windows 8.1

File property

Value

File name

Update.mum

File version

Not applicable

File size

1,591

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

File name

X86_5e9f57273cac51d5a29a741a560badab_31bf3856ad364e35_6.3.9600.18086_none_837bea6ba8a481b6.manifest

File version

Not applicable

File size

717

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

File name

X86_microsoft-windows-n..tformkeystorage-dll_31bf3856ad364e35_6.3.9600.18086_none_5ac943f9c472f8a8.manifest

File version

Not applicable

File size

11,064

Date (UTC)

08-Oct-2015

Time (UTC)

18:20

Platform

Not applicable

Windows RT 8.1

File property

Value

File name

Arm_bf8d882ee627f50d9d42206f02fff7b6_31bf3856ad364e35_6.3.9600.18086_none_023487cb486005b2.manifest

File version

Not applicable

File size

717

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

File name

Arm_microsoft-windows-n..tformkeystorage-dll_31bf3856ad364e35_6.3.9600.18086_none_5acbb651c470176e.manifest

File version

Not applicable

File size

11,064

Date (UTC)

08-Oct-2015

Time (UTC)

17:15

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,591

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property

Value

File name

Amd64_5e9f57273cac51d5a29a741a560badab_31bf3856ad364e35_6.3.9600.18086_none_df9a85ef6101f2ec.manifest

File version

Not applicable

File size

719

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

File name

Amd64_97879855ff04830e977241f5a3068e94_31bf3856ad364e35_6.3.9600.18086_none_fd7824d9cb66dc33.manifest

File version

Not applicable

File size

721

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

File name

Amd64_microsoft-windows-n..tformkeystorage-dll_31bf3856ad364e35_6.3.9600.18086_none_b6e7df7d7cd069de.manifest

File version

Not applicable

File size

11,068

Date (UTC)

08-Oct-2015

Time (UTC)

19:12

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,706

Date (UTC)

09-Oct-2015

Time (UTC)

12:59

Platform

Not applicable

File name

X86_microsoft-windows-n..tformkeystorage-dll_31bf3856ad364e35_6.3.9600.18086_none_5ac943f9c472f8a8.manifest

File version

Not applicable

File size

11,064

Date (UTC)

08-Oct-2015

Time (UTC)

18:20

Platform

Not applicable


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