This article describes an issue that occurs on a Trusted Platform Module (TPM) 2.0 device in Windows Server 2012 R2. You can fix this issue by using the update in this article. Before you install this update, check out the Prerequisites section.

Symptoms

The TPM driver doesn't recognize a TPM 2.0 device that has an ACPI table that uses a revision value of 4. The TPM driver is expecting a value of 3.

How to get this update

To fix this issue, we have released an update through Windows Update and Microsoft Download Center. Even though this issue is observed only in Windows Server 2012 R2, the update also applies to Windows 8.1 and Windows RT 8.1. 

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 downloaded 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 apply this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed 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 0.18xxx

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

    RTM

    GDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately 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

Tpm.sys

6.3.9600.18065

131,416

29-Sep-2015

12:30

x86

Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Tpm.sys

6.3.9600.18065

133,472

29-Sep-2015

12:36

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Tpm.sys

6.3.9600.18065

155,480

29-Sep-2015

12:24

x64


x86 Windows 8.1

File property

Value

File name

Update.mum

File version

Not applicable

File size

1,580

Date (UTC)

29-Sep-2015

Time (UTC)

12:37

Platform

Not applicable

File name

X86_tpm.inf_31bf3856ad364e35_6.3.9600.18066_none_40da1ce822af7201.manifest

File version

Not applicable

File size

2,083

Date (UTC)

29-Sep-2015

Time (UTC)

12:41

Platform

Not applicable

Windows RT 8.1

File property

Value

File name

Arm_tpm.inf_31bf3856ad364e35_6.3.9600.18066_none_40dc8f4022ac90c7.manifest

File version

Not applicable

File size

2,083

Date (UTC)

29-Sep-2015

Time (UTC)

12:37

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,580

Date (UTC)

29-Sep-2015

Time (UTC)

12:37

Platform

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property

Value

File name

Amd64_tpm.inf_31bf3856ad364e35_6.3.9600.18066_none_9cf8b86bdb0ce337.manifest

File version

Not applicable

File size

2,087

Date (UTC)

29-Sep-2015

Time (UTC)

12:44

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,588

Date (UTC)

29-Sep-2015

Time (UTC)

12:37

Platform

Not applicable


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