About this update

This update performs diagnostics in Windows 7 Service Pack 1 (SP1) in order to determine whether performance issues may be encountered when the latest Windows operating system is installed. Telemetry is sent back to Microsoft for those computers that participate in the Windows Customer Experience Improvement Program (CEIP). This update will help Microsoft and its partners deliver better system performance for customers who are seeking to install the latest Windows operating system.

How to obtain this update

You can obtain this update by using one of the following methods. Before you apply this update, notice that this update has prerequisites.

Method 1: Windows Update

This update is available from 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 7

Download Download the package now.

All supported x64-based versions of Windows 7

Download Download the package now.


For more information about how to download Microsoft support files, click 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, you must install Service Pack 1 for Windows 7.

Registry information

To apply this update, you do not 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 does not replace a previously released update.

The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 7 file information and 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

    6.1.760 1.18xxx

    Windows 7

    SP1

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


For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Core-fundamentals-clientperformance-perftrack.ptxml

Not applicable

2,688

13-Jul-2009

20:28

Not applicable

Perftrack.dll

6.1.7601.18700

635,904

12-Dec-2014

05:07

x86

Powertracker.dll

6.1.7601.18700

27,136

12-Dec-2014

05:07

x86

Wdi.dll

6.1.7601.18700

76,800

12-Dec-2014

05:07

x86

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Core-fundamentals-clientperformance-perftrack.ptxml

Not applicable

2,688

13-Jul-2009

20:22

Not applicable

Perftrack.dll

6.1.7601.18700

950,272

12-Dec-2014

05:31

x64

Powertracker.dll

6.1.7601.18700

29,696

12-Dec-2014

05:31

x64

Wdi.dll

6.1.7601.18700

91,136

12-Dec-2014

05:31

x64

Wdi.dll

6.1.7601.18700

76,800

12-Dec-2014

05:07

x86


Additional file information


Additional file information for Windows 7



Additional files for all supported x86-based versions of Windows 7

File property

Value

File name

X86_5236e8a1202b7165b48152ee4ae5a693_31bf3856ad364e35_6.1.7601.18700_none_574bc0ee8f83836a.manifest

File version

Not applicable

File size

719

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

X86_65231470a62359e7f7a7e37652f7e02e_31bf3856ad364e35_6.1.7601.18700_none_36ce30c831c184da.manifest

File version

Not applicable

File size

736

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

X86_8f2df887b065ebf40df03d1725891680_31bf3856ad364e35_6.1.7601.18700_none_425790f00df52369.manifest

File version

Not applicable

File size

733

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

X86_microsoft-windows-c..rformance-perftrack_31bf3856ad364e35_6.1.7601.18700_none_5de15c29a91e404c.manifest

File version

Not applicable

File size

68,464

Date (UTC)

12-Dec-2014

Time (UTC)

05:33

File name

X86_microsoft-windows-c..rmance-powertracker_31bf3856ad364e35_6.1.7601.18700_none_2774d2ca52bbe353.manifest

File version

Not applicable

File size

4,307

Date (UTC)

12-Dec-2014

Time (UTC)

05:30

File name

X86_microsoft-windows-d..frastructure-client_31bf3856ad364e35_6.1.7601.18700_none_4e18b1bc01273cb5.manifest

File version

Not applicable

File size

2,565

Date (UTC)

12-Dec-2014

Time (UTC)

05:32


Additional files for all supported x64-based versions of Windows 7

File property

Value

File name

Amd64_5236e8a1202b7165b48152ee4ae5a693_31bf3856ad364e35_6.1.7601.18700_none_b36a5c7247e0f4a0.manifest

File version

Not applicable

File size

721

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

Amd64_54b1bce861433daa719d6ce0a077bf8a_31bf3856ad364e35_6.1.7601.18700_none_c4c8f523d3dc6794.manifest

File version

Not applicable

File size

737

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

Amd64_8972ea21a95722c5b3916e214436ccbe_31bf3856ad364e35_6.1.7601.18700_none_f58cf4d62f66b5ba.manifest

File version

Not applicable

File size

740

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

Amd64_a586ecf509df1aebc576bacc0859dcdd_31bf3856ad364e35_6.1.7601.18700_none_2566478b0725bb9c.manifest

File version

Not applicable

File size

1,086

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

Amd64_e6a6dbd40d138766f5b91236a1d76626_31bf3856ad364e35_6.1.7601.18700_none_fe84f2fb9f22a13e.manifest

File version

Not applicable

File size

723

Date (UTC)

12-Dec-2014

Time (UTC)

14:49

File name

Amd64_microsoft-windows-c..rformance-perftrack_31bf3856ad364e35_6.1.7601.18700_none_b9fff7ad617bb182.manifest

File version

Not applicable

File size

68,470

Date (UTC)

12-Dec-2014

Time (UTC)

05:59

File name

Amd64_microsoft-windows-c..rmance-powertracker_31bf3856ad364e35_6.1.7601.18700_none_83936e4e0b195489.manifest

File version

Not applicable

File size

4,309

Date (UTC)

12-Dec-2014

Time (UTC)

05:55

File name

Amd64_microsoft-windows-d..frastructure-client_31bf3856ad364e35_6.1.7601.18700_none_aa374d3fb984adeb.manifest

File version

Not applicable

File size

2,569

Date (UTC)

12-Dec-2014

Time (UTC)

05:57

File name

X86_microsoft-windows-d..frastructure-client_31bf3856ad364e35_6.1.7601.18700_none_4e18b1bc01273cb5.manifest

File version

Not applicable

File size

2,565

Date (UTC)

12-Dec-2014

Time (UTC)

05:32


References

See the terminology that Microsoft uses to describe software updates.

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