Symptoms

Consider the following scenario:

  • You have a computer that has a large amount of memory and that's running Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows 8.1, or Windows Server 2012 R2.

  • You run an application that does batch processing in which many files and folders are created, deleted, moved, or renamed.


Every time that a folder is renamed in this scenario, a sharp increase in CPU usage occurs, and this causes performance issues on the computer.

Resolution

Hotfix information

A supported hotfix is available from Microsoft Support. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To install this update, you must install Service Pack 1 for Windows 7 or Windows Server 2008 R2. Or, install update 2919355 in Windows 8.1 or Windows Server 2012 R2.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

The English (United States) version of this hotfix 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 and Windows Server 2008 R2 file information and notesImportant Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    1.
    22xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important 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 separately in the "Additional file information for Windows 7 and Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely 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

Fltmgr.sys

6.1.7601.22729

200,640

26-Jun-2014

01:50

x86

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.1.7601.22729

287,160

26-Jun-2014

02:10

x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.1.7601.22729

627,640

26-Jun-2014

01:21

IA-64


Windows 8 and Windows Server 2012 file information and notesImportant Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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

    6.2.920 0.17xxx

    Windows 8, Windows RT, and Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 8 and Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely 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 8

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.2.9200.17096

291,136

25-Aug-2014

23:16

x86

For all supported x64-based versions of Windows 8 and Windows Server 2012

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.2.9200.17096

373,056

26-Aug-2014

01:25

x64

For all supported ARM-based versions of Windows 8

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.2.9200.17096

267,584

25-Aug-2014

22:53

Not applicable

Windows 8.1 and Windows Server 2012 R2 file information and notesImportant Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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

    6.2.920 0.17xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 8.1 and Windows Server 2012 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely 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 8.1

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.3.9600.17326

270,144

26-Aug-2014

02:24

x86

For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.3.9600.17326

354,112

26-Aug-2014

03:30

x64

For all supported ARM-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Fltmgr.sys

6.3.9600.17326

266,064

26-Aug-2014

00:42

Not applicable

Additional file information for Windows 7 and for Windows Server 2008 R2

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

File name

Package_1_for_kb2979933~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,829

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_2_for_kb2979933~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,812

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_3_for_kb2979933~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,814

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_for_kb2979933_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,459

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_for_kb2979933_sp1~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,918

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

X86_067186f05b2bc9c9bd09a5c3b12ffbea_31bf3856ad364e35_6.1.7601.22729_none_a2ecb9876abd5709.manifest

File version

Not Applicable

File size

706

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

X86_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.1.7601.22729_none_1394964ca22f7bc6.manifest

File version

Not Applicable

File size

10,677

Date (UTC)

26-Jun-2014

Time (UTC)

02:14

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

Amd64_f37245303aba2828cf93640bac74b24d_31bf3856ad364e35_6.1.7601.22729_none_2c3491ac513c4563.manifest

File version

Not Applicable

File size

710

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Amd64_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.1.7601.22729_none_6fb331d05a8cecfc.manifest

File version

Not Applicable

File size

10,681

Date (UTC)

26-Jun-2014

Time (UTC)

02:34

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_1_for_kb2979933~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,839

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_2_for_kb2979933~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,022

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_3_for_kb2979933~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,824

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_for_kb2979933_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,467

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_for_kb2979933_sp1~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,130

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_51ea42b60ada80251863f8f3b8144114_31bf3856ad364e35_6.1.7601.22729_none_645f53cf6b8042e9.manifest

File version

Not Applicable

File size

708

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Ia64_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.1.7601.22729_none_13963a42a22d84c2.manifest

File version

Not Applicable

File size

10,679

Date (UTC)

26-Jun-2014

Time (UTC)

02:03

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_1_for_kb2979933~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

1,817

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

File name

Package_for_kb2979933_sp1~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

1,446

Date (UTC)

26-Jun-2014

Time (UTC)

10:56

SHA-1 hash

Not Applicable

MD5 hash

Not Applicable

Additional file information for Windows 8 and for Windows Server 2012

Additional files for all supported x86-based versions of Windows 8

File property

Value

File name

X86_d3179d4461659c44378811dbc25de459_31bf3856ad364e35_6.2.9200.17097_none_7731f6a0098b10db.manifest

File version

Not applicable

File size

706

Date (UTC)

26-Aug-2014

Time (UTC)

08:48

File name

X86_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.2.9200.17097_none_0dac934afc386068.manifest

File version

Not applicable

File size

10,716

Date (UTC)

25-Aug-2014

Time (UTC)

23:36

Additional files for all supported x64-based versions of Windows 8 and Windows Server 2012

File property

Value

File name

Amd64_459f53faf29e922decde3b51c28d48f4_31bf3856ad364e35_6.2.9200.17097_none_c1705f391eb8e735.manifest

File version

Not applicable

File size

710

Date (UTC)

26-Aug-2014

Time (UTC)

08:49

File name

Amd64_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.2.9200.17097_none_69cb2eceb495d19e.manifest

File version

Not applicable

File size

10,720

Date (UTC)

26-Aug-2014

Time (UTC)

01:31

Additional files for all supported ARM-based versions of Windows 8

File property

Value

File name

Arm_c6a9480bfcea8d92ab9bf1a9860fe5e8_31bf3856ad364e35_6.2.9200.17097_none_08420e1936e3e1fb.manifest

File version

Not applicable

File size

706

Date (UTC)

26-Aug-2014

Time (UTC)

08:48

File name

Arm_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.2.9200.17097_none_0daf05a2fc357f2e.manifest

File version

Not applicable

File size

10,716

Date (UTC)

25-Aug-2014

Time (UTC)

22:55

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File property

Value

File name

X86_ddcf07745596812630667e94e344c7f8_31bf3856ad364e35_6.3.9600.17326_none_4dbddd1de211809f.manifest

File version

Not applicable

File size

706

Date (UTC)

26-Aug-2014

Time (UTC)

14:11

File name

X86_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.3.9600.17326_none_a5ec00cd46334b6c.manifest

File version

Not applicable

File size

10,716

Date (UTC)

26-Aug-2014

Time (UTC)

02:28

Additional files for all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

File property

Value

File name

Amd64_7ab6c5050a622b609637fe1d7794ce4e_31bf3856ad364e35_6.3.9600.17326_none_66eaaec47ec11a37.manifest

File version

Not applicable

File size

710

Date (UTC)

26-Aug-2014

Time (UTC)

14:14

File name

Amd64_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.3.9600.17326_none_020a9c50fe90bca2.manifest

File version

Not applicable

File size

10,720

Date (UTC)

26-Aug-2014

Time (UTC)

03:34

Additional files for all supported ARM-based versions of Windows 8.1

File property

Value

File name

Arm_0f3265ba74e62f766519749dd1a651c0_31bf3856ad364e35_6.3.9600.17326_none_474b33853d7914be.manifest

File version

Not applicable

File size

706

Date (UTC)

26-Aug-2014

Time (UTC)

14:16

File name

Arm_microsoft-windows-filtermanager-core_31bf3856ad364e35_6.3.9600.17326_none_a5ee732546306a32.manifest

File version

Not applicable

File size

10,716

Date (UTC)

26-Aug-2014

Time (UTC)

00:51


Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.

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