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A robocopy command updates DACLs incorrectly in Windows 7 or in Windows Server 2008 R2

Symptoms
Assume that you use the following robocopy command to perform file replication on a computer that is running Windows 7 or Windows Server 2008 R2:
robocopy <Source> <Destination> /sec /mir
However, the Discretionary Access Control Lists (DACLs) for the files are updated incorrectly. This issue occurs even if the DACLs in the source location and in the destination location are the same.

Note When this issue occurs in a network environment that uses the Distributed File System Replication (DFSR) service, a very large DFS replication backlog is generated.
Resolution

Hotfix information

Note If you use the robocopy command to perform file replication between two computers, you must install this hotfix on both computers.

Note After the update is installed, the robocopy command behavior is changed. When you copy security descriptors, destination files don't inherit permissions from new parent even when the inheritance is set..

A supported hotfix is available from Microsoft. 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, visit the following Microsoft Web site: Note 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 apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global 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 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:
    VersionProductMilestoneService branch
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.22xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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 Server 2008 R2 and for Windows 7" 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 nameFile versionFile sizeDateTimePlatform
Ntfs.sys6.1.7600.212271,210,73606-Jun-201204:51x86
Ntfs.sys6.1.7601.220121,212,27206-Jun-201204:34x86
Robocopy.exe6.1.7600.21227101,88806-Jun-201204:39x86
Robocopy.exe6.1.7601.22012101,88806-Jun-201204:22x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Ntfs.sys6.1.7600.212271,680,24006-Jun-201205:46x64
Ntfs.sys6.1.7601.220121,687,40806-Jun-201205:43x64
Robocopy.exe6.1.7600.21227127,48806-Jun-201205:22x64
Robocopy.exe6.1.7601.22012127,48806-Jun-201205:20x64
Robocopy.exe6.1.7600.21227101,88806-Jun-201204:39x86
Robocopy.exe6.1.7601.22012101,88806-Jun-201204:22x86
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Ntfs.sys6.1.7600.212273,553,13606-Jun-201204:28IA-64
Ntfs.sys6.1.7601.220123,556,20806-Jun-201204:21IA-64
Robocopy.exe6.1.7600.21227274,94406-Jun-201204:12IA-64
Robocopy.exe6.1.7601.22012274,94406-Jun-201204:11IA-64
Robocopy.exe6.1.7600.21227101,88806-Jun-201204:39x86
Robocopy.exe6.1.7601.22012101,88806-Jun-201204:22x86
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information about how to configure the DACL, visit the following Microsoft website:For more information about the robocopy command, visit the following Microsoft website:For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

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

Additional files for all supported x86-based versions of Windows 7
File nameUpdate.mum
File versionNot Applicable
File size46,030
Date (UTC)06-Jun-2012
Time (UTC)23:25
PlatformNot Applicable
File nameX86_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.21227_none_a713e233972a7929.manifest
File versionNot Applicable
File size14,508
Date (UTC)06-Jun-2012
Time (UTC)05:26
PlatformNot Applicable
File nameX86_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7601.22012_none_a9000db3944d4a71.manifest
File versionNot Applicable
File size14,508
Date (UTC)06-Jun-2012
Time (UTC)05:02
PlatformNot Applicable
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21227_none_c7a9e7f766a31c4f.manifest
File versionNot Applicable
File size2,586
Date (UTC)06-Jun-2012
Time (UTC)05:32
PlatformNot Applicable
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.22012_none_c996137763c5ed97.manifest
File versionNot Applicable
File size2,586
Date (UTC)06-Jun-2012
Time (UTC)05:00
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.21227_none_03327db74f87ea5f.manifest
File versionNot Applicable
File size14,514
Date (UTC)06-Jun-2012
Time (UTC)06:47
PlatformNot Applicable
File nameAmd64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7601.22012_none_051ea9374caabba7.manifest
File versionNot Applicable
File size14,514
Date (UTC)06-Jun-2012
Time (UTC)06:43
PlatformNot Applicable
File nameAmd64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21227_none_23c8837b1f008d85.manifest
File versionNot Applicable
File size2,590
Date (UTC)06-Jun-2012
Time (UTC)06:45
PlatformNot Applicable
File nameAmd64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.22012_none_25b4aefb1c235ecd.manifest
File versionNot Applicable
File size2,590
Date (UTC)06-Jun-2012
Time (UTC)06:41
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size93,862
Date (UTC)06-Jun-2012
Time (UTC)23:25
PlatformNot Applicable
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21227_none_c7a9e7f766a31c4f.manifest
File versionNot Applicable
File size2,586
Date (UTC)06-Jun-2012
Time (UTC)05:32
PlatformNot Applicable
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.22012_none_c996137763c5ed97.manifest
File versionNot Applicable
File size2,586
Date (UTC)06-Jun-2012
Time (UTC)05:00
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.21227_none_a715862997288225.manifest
File versionNot Applicable
File size14,511
Date (UTC)06-Jun-2012
Time (UTC)06:04
PlatformNot Applicable
File nameIa64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7601.22012_none_a901b1a9944b536d.manifest
File versionNot Applicable
File size14,511
Date (UTC)06-Jun-2012
Time (UTC)05:44
PlatformNot Applicable
File nameIa64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21227_none_c7ab8bed66a1254b.manifest
File versionNot Applicable
File size2,588
Date (UTC)06-Jun-2012
Time (UTC)06:03
PlatformNot Applicable
File nameIa64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.22012_none_c997b76d63c3f693.manifest
File versionNot Applicable
File size2,588
Date (UTC)06-Jun-2012
Time (UTC)05:42
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size11,168
Date (UTC)06-Jun-2012
Time (UTC)23:25
PlatformNot Applicable
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21227_none_c7a9e7f766a31c4f.manifest
File versionNot Applicable
File size2,586
Date (UTC)06-Jun-2012
Time (UTC)05:32
PlatformNot Applicable
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.22012_none_c996137763c5ed97.manifest
File versionNot Applicable
File size2,586
Date (UTC)06-Jun-2012
Time (UTC)05:00
PlatformNot Applicable
Properties

Article ID: 2639043 - Last Review: 05/10/2016 07:59:00 - Revision: 5.0

Windows 7 Enterprise, Windows 7 Home Basic, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Starter, Windows 7 Ultimate, Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 for Itanium-Based Systems, Windows Server 2008 R2 Foundation, Windows Server 2008 R2 Standard, Windows Web Server 2008 R2

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