This article describes a hotfix that adds the FileFsSectorSizeInformation information class to Windows 7 and to Windows Server 2008 R2.
Note The FileFsSectorSizeInformation information class is used to return a FILE_FS_SECTOR_SIZE_INFORMATION structure that contains information about the physical and logical sector sizes of a volume.
Before you install this hotfix, you can enable physical sector size reporting by using the IOCTL_STORAGE_QUERY_PROPERTY control code. However, this control code has the following limitations:
The control code can only be called on a volume handle. Elevated permissions are required to perform this operation.
The control code cannot be sent by using the Server Message Block (SMB) protocol, and applications that use the control code do not support the SMB protocol.
The FileFsSectorSizeInformation information class that is added when you install this hotfix provides the following advantages:
The information class can be called on any valid file handle. Elevated permissions are not required to perform this operation.
The information class can be used in an SMB environment, and applications that use the information class support the SMB protocol. For example, the information class can be used to return the physical sector size of a remote file share.
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 Service Pack 1 (SP1)
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:
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.
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Version
Product
SR_Level
Service branch
6.1.760
1
.
17xxx
Windows 7 and Windows Server 2008 R2
SP1
GDR
6.1.760
1
.
21xxx
Windows 7 and Windows Server 2008 R2
SP1
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 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
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File name
File version
File size
Date
Time
Platform
Ntfs.sys
6.1.7601.17693
1,211,760
16-Sep-2011
04:26
x86
Ntfs.sys
6.1.7601.21820
1,211,760
16-Sep-2011
06:20
x86
Ntkrnlpa.exe
6.1.7601.17693
3,967,856
16-Sep-2011
04:26
Not applicable
Ntoskrnl.exe
6.1.7601.17693
3,912,560
16-Sep-2011
04:26
Not applicable
Ntkrnlpa.exe
6.1.7601.21820
3,972,976
16-Sep-2011
06:20
Not applicable
Ntoskrnl.exe
6.1.7601.21820
3,916,144
16-Sep-2011
06:20
Not applicable
Srv2.sys
6.1.7601.17693
310,272
16-Sep-2011
02:16
x86
Srv2.sys
6.1.7601.21820
312,320
16-Sep-2011
03:32
x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File name
File version
File size
Date
Time
Platform
Ntfs.sys
6.1.7601.17693
1,660,272
16-Sep-2011
05:35
x64
Ntfs.sys
6.1.7601.21820
1,660,272
16-Sep-2011
06:43
x64
Ntoskrnl.exe
6.1.7601.17693
5,558,128
16-Sep-2011
05:35
x64
Ntoskrnl.exe
6.1.7601.21820
5,551,472
16-Sep-2011
06:43
x64
Srv2.sys
6.1.7601.17693
410,112
16-Sep-2011
02:46
x64
Srv2.sys
6.1.7601.21820
409,600
16-Sep-2011
03:34
x64
Ntkrnlpa.exe
6.1.7601.17693
3,967,856
16-Sep-2011
04:26
Not applicable
Ntoskrnl.exe
6.1.7601.17693
3,912,560
16-Sep-2011
04:26
Not applicable
Ntkrnlpa.exe
6.1.7601.21820
3,972,976
16-Sep-2011
06:20
Not applicable
Ntoskrnl.exe
6.1.7601.21820
3,916,144
16-Sep-2011
06:20
Not applicable
For all supported IA-64–based versions of Windows Server 2008 R2
Description of the standard terminology that is used to describe Microsoft software updates
For more information about Microsoft support policy for large-sector drives in Windows, click the following article number to view the article in the Microsoft Knowledge Base:
Information about Microsoft support policy for large-sector drives in Windows
For more information about an update that improves the compatibilityof Windows 7 and of Windows Server 2008 R2 with Advanced Format Disks, click the following article number to view the article in the Microsoft Knowledge Base:
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