Robocopy.exe utility incorrectly skips some files during the file copy or backup process in Windows 7 or in Windows Server 2008 R2

Article ID: 2680906 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You use the Robocopy.exe utility to copy or to back up files on a computer that is running Windows 7 or Windows Server 2008 R2.
  • The names of the files contain East Asian characters, for example Japanese characters.
In this scenario, some files may not be copied, and the Robocopy.exe utility does not report an error. If you use the Robocopy.exe utility for backup, it may cause system instability, or a restore failure.

Here is a sample scenario:
  • You save two files into a folder on a computer that is running Windows Server 2008 R2 or Windows 7.
    • ー.txt ("chouon" character)
    • ―.txt ("em dash" character)
  • You try to copy both files to a destination folder by using the Robocopy.exe utility.
In this scenario, only one file is copied.

Cause

This issue occurs because the Robocopy.exe utility uses an incorrect string comparison function when the utility copies files.

Resolution

Hotfix information

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 website:
http://support.microsoft.com/contactus/?ws=support
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 apply the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You do not need to 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
Important 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1 . 21xxxWindows 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Ntfs.sys6.1.7600.211631,210,73606-Mar-201205:59
Ntfs.sys6.1.7601.219361,212,27206-Mar-201205:41
Robocopy.exe5.1.10.1027100,86406-Mar-201205:33
Robocopy.exe5.1.10.1027100,86406-Mar-201205:18
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Ntfs.sys6.1.7600.211631,683,82406-Mar-201206:51
Ntfs.sys6.1.7601.219361,690,48006-Mar-201206:30
Robocopy.exe5.1.10.1027126,97606-Mar-201206:36
Robocopy.exe5.1.10.1027126,97606-Mar-201206:17
For all supported IA-64–based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Ntfs.sys6.1.7600.211633,555,18406-Mar-201205:42
Ntfs.sys6.1.7601.219363,559,28006-Mar-201205:38
Robocopy.exe5.1.10.1027273,40806-Mar-201205:18
Robocopy.exe5.1.10.1027273,40806-Mar-201205:16

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 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
For more informationabout a similar issue, click the following article number to view the article in the Microsoft Knowledge Base:
2646454 Robocopy.exe utility incorrectly skips some files during the file copy or backup process in Windows Vista or in Windows Server 2008

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
Collapse this tableExpand this table
File nameX86_1c0663d1d423856758aa9ca5c0b8e41e_31bf3856ad364e35_6.1.7601.21936_none_8453b6e5bb9bdf4f.manifest
File versionNot applicable
File size692
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameX86_2318f4ae9dba21011ae7428cecc80d1e_31bf3856ad364e35_6.1.7600.21163_none_b944bfa2d385016e.manifest
File versionNot applicable
File size696
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameX86_33242411d2297e05c98fdac656527668_31bf3856ad364e35_6.1.7601.21936_none_5cafbb1eaf62ba62.manifest
File versionNot applicable
File size696
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameX86_46fdebb2f30e1618a12ac711c86c76a9_31bf3856ad364e35_6.1.7601.21936_none_3bdab0add84eed7e.manifest
File versionNot applicable
File size1,032
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameX86_6dfdc2248d43520e7301aa5e5c13a7c6_31bf3856ad364e35_6.1.7600.21163_none_4f068dcc2964cad2.manifest
File versionNot applicable
File size1,032
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameX86_c548237f0688feb2053b81bb5113bc59_31bf3856ad364e35_6.1.7600.21163_none_50c0887b519458e1.manifest
File versionNot applicable
File size692
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameX86_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.21163_none_a6e49f75974e866a.manifest
File versionNot applicable
File size14,508
Date (UTC)06-Mar-2012
Time (UTC)06:36
File nameX86_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7601.21936_none_a8ee96e19459b46d.manifest
File versionNot applicable
File size14,508
Date (UTC)06-Mar-2012
Time (UTC)06:26
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21163_none_c77aa53966c72990.manifest
File versionNot applicable
File size2,586
Date (UTC)06-Mar-2012
Time (UTC)06:43
File nameX86_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.21936_none_c9849ca563d25793.manifest
File versionNot applicable
File size2,586
Date (UTC)06-Mar-2012
Time (UTC)06:24
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_1ba4269290ae3394d5030997b4f39a73_31bf3856ad364e35_6.1.7600.21163_none_699fb14cd9499af9.manifest
File versionNot applicable
File size1,040
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_2318f4ae9dba21011ae7428cecc80d1e_31bf3856ad364e35_6.1.7600.21163_none_15635b268be272a4.manifest
File versionNot applicable
File size698
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_33242411d2297e05c98fdac656527668_31bf3856ad364e35_6.1.7601.21936_none_b8ce56a267c02b98.manifest
File versionNot applicable
File size698
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_337c869a0cee9d3893837ee2336543e7_31bf3856ad364e35_6.1.7600.21163_none_0fcf85e3c66a27bf.manifest
File versionNot applicable
File size1,038
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_9562dd7e3d403cd79969838f31fd7bfd_31bf3856ad364e35_6.1.7601.21936_none_6093d8bda1d3e472.manifest
File versionNot applicable
File size696
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_b49f576a4f0a90290cb8c6c0798e4ca8_31bf3856ad364e35_6.1.7600.21163_none_b322b4eaa3a9adf7.manifest
File versionNot applicable
File size696
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_c1eada20b096a7f7756085519cd62915_31bf3856ad364e35_6.1.7601.21936_none_f301d474f3ba6cb8.manifest
File versionNot applicable
File size1,038
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_d162704a78a5474c2ed265251a6e7f7f_31bf3856ad364e35_6.1.7601.21936_none_aebc41f21ab616c5.manifest
File versionNot applicable
File size1,040
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameAmd64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.21163_none_03033af94fabf7a0.manifest
File versionNot applicable
File size14,514
Date (UTC)06-Mar-2012
Time (UTC)07:29
File nameAmd64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7601.21936_none_050d32654cb725a3.manifest
File versionNot applicable
File size14,514
Date (UTC)06-Mar-2012
Time (UTC)07:08
File nameAmd64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21163_none_239940bd1f249ac6.manifest
File versionNot applicable
File size2,590
Date (UTC)06-Mar-2012
Time (UTC)07:26
File nameAmd64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.21936_none_25a338291c2fc8c9.manifest
File versionNot applicable
File size2,590
Date (UTC)06-Mar-2012
Time (UTC)07:03
Additional files for all supported IA-64–based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_989aad9c793878049c162cd028053032_31bf3856ad364e35_6.1.7600.21163_none_e8b39d59bbd1ee59.manifest
File versionNot applicable
File size1,375
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameIa64_9d475c03f432094bf7097ba8f0ab1175_31bf3856ad364e35_6.1.7601.21936_none_07262639a41a2989.manifest
File versionNot applicable
File size1,375
Date (UTC)06-Mar-2012
Time (UTC)17:51
File nameIa64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.21163_none_a6e6436b974c8f66.manifest
File versionNot applicable
File size14,511
Date (UTC)06-Mar-2012
Time (UTC)06:53
File nameIa64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7601.21936_none_a8f03ad79457bd69.manifest
File versionNot applicable
File size14,511
Date (UTC)06-Mar-2012
Time (UTC)06:38
File nameIa64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7600.21163_none_c77c492f66c5328c.manifest
File versionNot applicable
File size2,588
Date (UTC)06-Mar-2012
Time (UTC)06:51
File nameIa64_microsoft-windows-robocopy_31bf3856ad364e35_6.1.7601.21936_none_c986409b63d0608f.manifest
File versionNot applicable
File size2,588
Date (UTC)06-Mar-2012
Time (UTC)06:37

Properties

Article ID: 2680906 - Last Review: January 4, 2013 - Revision: 2.0
Applies to
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 for Itanium-Based Systems
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2680906

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