DetailPage-MSS-KB

Microsoft small business knowledge base

Article ID: 2748349 - Last Review: March 18, 2013 - Revision: 4.0

On This Page

Symptoms

Assume that you have a computer that is running Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2. You use a backup application that uses the Windows Volume Shadow Copy feature to create snapshots and read files from the snapshots. In this situation, one or more corrupted files are found in the snapshots.

Notes
  • The corrupted files can be backed up by using the backup application. The corrupted files can only be noticed during a restore process.
  • The backup data of any third-party back up application can be affected. For example, NTBackup, Windows Server Backup, System Center Data Protection Manager (DPM) can be affected. Please contact your third-party backup solution manufacturer to determine whether they use the Windows Volume Shadow Copy feature to create backups.                  

Cause

This issue occurs because some regions in the snapshot are not protected when the original volume is changed. When the file is read from the snapshot, the file data is not consistent. Therefore, the file data becomes corrupted. When a backup is taken by using this snapshot, the corrupted file is stored later.  

Free clusters in a volume comply by using the following pattern:

Note White regions in the pattern represent free clusters.

Collapse this imageExpand this image


The Windows Volume Shadow Copy feature cannot protect the second region that is being used. Therefore, when blocks are read by an application, the old content is overwritten by the new content.

This pattern occurs when the current size of the volume that you extend is a multiple of 8 gigabytes (GB) by a size that is larger than 8 GB. The chances to obtain the pattern are increased in the following conditions:

  • The initial size of the volume that you extend is a multiple of 8 GB.
  • The volume is frequently extended by multiple of 8 GB.        
Note The pattern occurs in other situations too. The previous cases of corruption increase the occurrence of the pattern.

Resolution

Update information

How to obtain this update

Microsoft Update
This update is available from the following Microsoft Update website:
http://update.microsoft.com (http://update.microsoft.com)
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Collapse this tableExpand this table
Operating systemUpdate
All supported x86-based version of Windows Server 2003
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=d22fa94a-a1e8-4032-91a4-68bba0b210a8)
All supported x64-based version of Windows Server 2003
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=20554628-e65d-4c20-925b-fa0297b704ee )
All supported IA-64-based versions of Windows Server 2003
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=e5b78ef0-5a8a-43c3-a137-e584368492a1)
All supported x86-based version of Windows Vista
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=cbb3f2ca-1ecc-4d49-bff9-257b428b69af)
All supported x64-based version of Windows Vista
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=85f670cb-f01d-4c3a-bc7b-87d46332d4f2)
All supported x86-based versions of Windows Server 2008
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=db304a68-3360-457c-be40-fe09e9c21b24)
All supported x64-based versions of Windows Server 2008
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=ac4dd717-e547-4b38-bc6b-cfaffffb17dc)
All supported IA-64-based versions of Windows Server 2008
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=b88b2b9b-cefc-4a9b-b62f-bc5f6bb3d27b)
All supported x86-based versions of Windows 7
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=1ae4d730-46b8-402d-bffd-59b98c729f54)
All supported x64-based versions of Windows 7
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=7c859720-84ab-4966-8e14-15946d4eb843)
All supported x64-based versions of Windows Server 2008 R2
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=28928553-cd63-40a4-958f-486350f7e812)
All supported IA-64-based versions of Windows Server 2008 R2
Collapse this imageExpand this image
Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=7c9cd36b-1481-4b33-ba8f-dc5401651c50)
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  (http://support.microsoft.com/kb/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.

Prerequisites

To apply this update, you must be running one of the following operation systems:
  • Windows Server 2003 Service Pack 2 (SP2)
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008 Service Pack 2 (SP2)
  • Windows 7
  • Windows Server 2008 R2

For more information about how to obtain a Windows Server 2003 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
889100  (http://support.microsoft.com/kb/889100/ ) How to obtain the latest service pack for Windows Server 2003
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791  (http://support.microsoft.com/kb/935791/ ) How to obtain the latest Windows Vista service pack
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849  (http://support.microsoft.com/kb/968849/ ) How to obtain the latest service pack for Windows Server 2008
Note The fix is included in Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 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  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.

File information

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 Server 2003 file information notes
  • In addition to the files that are listed in these tables, this update also installs an associated security catalog file (KB976329.cat) that is signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2003
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Volsnap.sys5.2.3790.5059159,23221-Aug-201212:54x86SP2
W03a3409.dll5.2.3790.471544,54409-Jul-201004:25x86SP2
Collapse this imageExpand this image
For all supported x64-based versions of Windows Server 2003
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Volsnap.sys5.2.3790.5059317,44022-Aug-201216:38x64SP2Not applicable
W03a3409.dll5.2.3790.471545,05622-Aug-201216:38x64SP2Not applicable
Ww03a3409.dll5.2.3790.471544,54422-Aug-201216:38x86SP2WOW
Collapse this imageExpand this image
For all supported IA-64-based versions of Windows Server 2003
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Volsnap.sys5.2.3790.5059496,64022-Aug-201216:38IA-64SP2Not applicable
W03a3409.dll5.2.3790.471543,52022-Aug-201216:38IA-64SP2Not applicable
Ww03a3409.dll5.2.3790.471544,54422-Aug-201216:38x86SP2WOW
Collapse this imageExpand this image

Windows Vista and Windows Server 2008 file information notes
Important Windows Vista updates and Windows Server 2008 updates are included in the same packages. However, only "Windows Vista" is listed on the Update Request page. To request the update package that applies to one or both operating systems, select the update that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each update 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
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
For all supported x86-based versions of Windows Vista and of Windows Server 2008
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Volsnap.sys6.0.6002.18679224,64021-Aug-201211:47x86
Volsnap.sys6.0.6002.22913225,66421-Aug-201211:47x86
Collapse this imageExpand this image
For all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Volsnap.sys6.0.6002.18679267,64821-Aug-201211:50x64
Volsnap.sys6.0.6002.22913268,16021-Aug-201211:50x64
Collapse this imageExpand this image
For all supported IA-64-based versions of Windows Server 2008
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Volsnap.sys6.0.6002.18679623,48821-Aug-201211:44IA-64
Volsnap.sys6.0.6002.22913626,04821-Aug-201211:44IA-64
Collapse this imageExpand this image
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 updates and Windows Server 2008 R2 updates are included in the same packages. However, updates on the Update Request page are listed under both operating systems. To request the update package that applies to one or both operating systems, select the update 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 update 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
    VersionProductMilestoneService branch
    6.1.760 0.17xxxWindows 7 and Windows Server 2008 R2RTMGDR
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain updates in addition to widely released fixes.
For all supported x86-based versions of Windows 7
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Volsnap.sys6.1.7600.17122245,61606-Sep-201216:48x86
Volsnap.sys6.1.7600.21320245,61606-Sep-201219:18x86
Collapse this imageExpand this image
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Volsnap.sys6.1.7600.17122295,79206-Sep-201217:38x64
Volsnap.sys6.1.7600.21320296,30406-Sep-201220:08x64
Collapse this imageExpand this image
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this imageExpand this image
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Volsnap.sys6.1.7600.17122677,23206-Sep-201216:38IA-64
Volsnap.sys6.1.7600.21320678,25606-Sep-201219:21IA-64
Collapse this imageExpand this image

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 this issue, click the following article number to view the article in the Microsoft Knowledge Base:
976329  (http://support.microsoft.com/kb/976329/ ) Error message when you run the ChkDsk.exe utility in read-only mode on a Windows-based computer: "The Volume Bitmap is incorrect" or "Error detected in index $I30 for file 5"
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Applies to
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003 Service Pack 2
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Web Server 2008
  • Windows Vista Enterprise
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Home Basic
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Ultimate 64-bit Edition
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
Keywords: 
kbsurveynew kbexpertiseadvanced atdownload kbfix KB2748349
Share
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support