Windows Server Backup utility does not back up some newly created files in Windows 7 or in Windows Server 2008 R2

Applies to: Windows Server 2008 R2 StandardWindows Server 2008 R2 EnterpriseWindows Server 2008 R2 Datacenter More

Symptoms


Consider the following scenario:
  • You have a computer that is running Windows 7 or Windows Server 2008 R2.
  • You use the Windows Server Backup utility to back up files on a volume regularly.
  • Files are created or renamed in a certain short period of time in snapshot creation.

In this scenario, the file is not backed up, and the backup operation finishes in the incomplete backup status.

If you use the Windows Server Backup utility for incremental backups, the next backup operation is a full backup instead of an incremental backup. Therefore, the chain of incremental backup sets is broken.

Cause


This issue occurs because the Wbengine.exe service does not appropriately handle files that are created or renamed in a certain period of time.

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 this specific problem.

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, submit a request to 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 a 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
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.
    VersionProductSR_LevelService branch
    6.1.760
    0.
    20xxx
    Windows 7 and Windows Server 2008 R2RTMLDR
    6.1.760
    1.
    21xxx
    Windows 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
Wbengine.exe6.1.7600.209081,203,71224-Feb-201105:42x86
Wbengine.exe6.1.7601.216671,204,22424-Feb-201105:12x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Wbengine.exe6.1.7600.209081,504,76824-Feb-201106:21x64
Wbengine.exe6.1.7601.216671,505,28024-Feb-201106:15x64
Blbsrv.dll6.1.7600.20908707,07224-Feb-201106:21x64
Blbsrv.dll6.1.7601.21667707,58424-Feb-201106:18x64
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Wbengine.exe6.1.7600.209083,718,14424-Feb-201105:18IA-64
Wbengine.exe6.1.7601.216673,718,65624-Feb-201105:00IA-64
Blbsrv.dll6.1.7600.209081,540,60824-Feb-201105:19IA-64
Blbsrv.dll6.1.7601.216671,540,60824-Feb-201105:00IA-64

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

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 size2,711
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameX86_2bf03e8d4d57f62738ea8206d5950cbf_31bf3856ad364e35_6.1.7601.21667_none_d438cce325d8d3d2.manifest
File versionNot applicable
File size703
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameX86_b4e68535a396fb0c662cfbc3021a82b4_31bf3856ad364e35_6.1.7600.20908_none_12d4c62dd1cb9887.manifest
File versionNot applicable
File size703
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameX86_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.1.7600.20908_none_e49b72a279ed7c54.manifest
File versionNot applicable
File size7,062
Date (UTC)24-Feb-2011
Time (UTC)06:27
PlatformNot applicable
File nameX86_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.1.7601.21667_none_e63fedf077457968.manifest
File versionNot applicable
File size7,062
Date (UTC)24-Feb-2011
Time (UTC)05:49
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_329dc7df4ba0643b9225adf7a7776193_31bf3856ad364e35_6.1.7600.20908_none_08e13e1ae51f718f.manifest
File versionNot applicable
File size707
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameAmd64_33534da750f0c3a34bb5bbecc3c3c559_31bf3856ad364e35_6.1.7601.21667_none_5aab9a0e7aa1d820.manifest
File versionNot applicable
File size707
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameAmd64_c63341518cbc15f31a18e7788f0f7359_31bf3856ad364e35_6.1.7601.21667_none_9fc834a89a4fcd63.manifest
File versionNot applicable
File size704
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameAmd64_e91bf3dbb7a554a3bc563f2b6ba72f3c_31bf3856ad364e35_6.1.7600.20908_none_2f8dab91e89ae4b5.manifest
File versionNot applicable
File size704
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameAmd64_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.1.7600.20908_none_40ba0e26324aed8a.manifest
File versionNot applicable
File size7,068
Date (UTC)24-Feb-2011
Time (UTC)07:21
PlatformNot applicable
File nameAmd64_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.1.7601.21667_none_425e89742fa2ea9e.manifest
File versionNot applicable
File size7,068
Date (UTC)24-Feb-2011
Time (UTC)07:04
PlatformNot applicable
File nameAmd64_microsoft-windows-blb-srv-main_31bf3856ad364e35_6.1.7600.20908_none_7075e9c53ebed741.manifest
File versionNot applicable
File size6,309
Date (UTC)24-Feb-2011
Time (UTC)07:03
PlatformNot applicable
File nameAmd64_microsoft-windows-blb-srv-main_31bf3856ad364e35_6.1.7601.21667_none_721a65133c16d455.manifest
File versionNot applicable
File size6,309
Date (UTC)24-Feb-2011
Time (UTC)06:54
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size3,117
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_806cf5ed8b5ffe772aa37c46894520cd_31bf3856ad364e35_6.1.7601.21667_none_626036b67efa2f4d.manifest
File versionNot applicable
File size705
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameIa64_8bb014e2f1b3ca4e07dbb6b4df12c485_31bf3856ad364e35_6.1.7601.21667_none_ea8805085afb2875.manifest
File versionNot applicable
File size702
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameIa64_cba4186f63676c83c13526d1e2928e48_31bf3856ad364e35_6.1.7600.20908_none_23f57d34104358d5.manifest
File versionNot applicable
File size702
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameIa64_ef8a48fe514b4e00b32d04c2a404aeb0_31bf3856ad364e35_6.1.7600.20908_none_b07be81a287b25b5.manifest
File versionNot applicable
File size705
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable
File nameIa64_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.1.7600.20908_none_e49d169879eb8550.manifest
File versionNot applicable
File size7,065
Date (UTC)24-Feb-2011
Time (UTC)07:15
PlatformNot applicable
File nameIa64_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.1.7601.21667_none_e64191e677438264.manifest
File versionNot applicable
File size7,065
Date (UTC)24-Feb-2011
Time (UTC)06:36
PlatformNot applicable
File nameIa64_microsoft-windows-blb-srv-main_31bf3856ad364e35_6.1.7600.20908_none_1458f237865f6f07.manifest
File versionNot applicable
File size6,307
Date (UTC)24-Feb-2011
Time (UTC)07:07
PlatformNot applicable
File nameIa64_microsoft-windows-blb-srv-main_31bf3856ad364e35_6.1.7601.21667_none_15fd6d8583b76c1b.manifest
File versionNot applicable
File size6,307
Date (UTC)24-Feb-2011
Time (UTC)06:30
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,911
Date (UTC)25-Feb-2011
Time (UTC)11:35
PlatformNot applicable