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Article ID: 2496290 - Last Review: November 14, 2011 - Revision: 8.0

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SYMPTOMS

Assume that you run an application that calls the DeviceIoControl function together with the IOCTL_DISK_IS_WRITABLE control code on a computer that is running Windows 7 or Windows Server 2008 R2. This action determines whether write-protection is enabled on a floppy disk that is inserted in a  USB floppy disk drive. In this situation, you receive the following error message:
0x45d (1117) ERROR_IO_DEVICE

CAUSE

This issue occurs because some Small Computer Standard Interface (SCSI) command conversions for USB floppy disk drives are removed from the Usbstor.sys module in Windows 7 or in Windows Server 2008 R2.

MORE INFORMATION

Update information

How to obtain this update

The following files are available for download from the Microsoft Download Center:
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Operating systemUpdate
All supported x86-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=1ed58fe3-a321-4ed8-93fa-45030ea2d426)
All supported x64-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=bc24c4b3-523f-444a-8009-ea661bd565b6)
All supported x64-based versions of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=ef417024-fc8f-4e7c-90ef-09ccff07198f)
All supported IA-64-based versions of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=66663fd7-7a7a-448f-aae9-6ff39e9b7e61)
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 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  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the update 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 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 7 and Windows Server 2008 R2 file information notes
  • 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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    VersionProductSR_LevelService branch
    6.1.760 0 . 16xxxWindows 7 and Windows Server 2008 R2RTMGDR
    6.1.760 0 . 21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1 . 17xxxWindows 7 and Windows Server 2008 R2SP1GDR
    6.1.760 1 . 21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • 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 nameFile versionFile sizeDateTimePlatform
Usbstor.sys6.1.7600.1687775,77603-Sep-201108:11x86
Usbstor.sys6.1.7600.2104575,77603-Sep-201108:10x86
Usbstor.sys6.1.7601.1768476,28803-Sep-201108:06x86
Usbstor.sys6.1.7601.2181076,28803-Sep-201109:27x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
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File nameFile versionFile sizeDateTimePlatform
Usbstor.sys6.1.7600.1687791,13603-Sep-201108:48x64
Usbstor.sys6.1.7600.2104591,13603-Sep-201108:43x64
Usbstor.sys6.1.7601.1768491,64803-Sep-201108:48x64
Usbstor.sys6.1.7601.2181091,64803-Sep-201109:40x64
For all supported IA-64-based versions of Windows Server 2008 R2
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File nameFile versionFile sizeDateTimePlatform
Usbstor.sys6.1.7600.16877239,10403-Sep-201107:54IA-64
Usbstor.sys6.1.7600.21045239,10403-Sep-201108:01IA-64
Usbstor.sys6.1.7601.17684239,61603-Sep-201107:46IA-64
Usbstor.sys6.1.7601.21810239,61603-Sep-201107:53IA-64
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
For more information about the IOCTL_DISK_IS_WRITABLE control code, visit the following Microsoft website:
General information about the IOCTL_DISK_IS_WRITABLE control code (http://msdn.microsoft.com/library/aa365182(VS.85).aspx)

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
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File nameX86_usbstor.inf_31bf3856ad364e35_6.1.7600.16877_none_48697ed7f91cb934.manifest
File versionNot Applicable
File size2,087
Date (UTC)03-Sep-2011
Time (UTC)10:09
File nameX86_usbstor.inf_31bf3856ad364e35_6.1.7600.21045_none_491162f5122405bf.manifest
File versionNot Applicable
File size2,087
Date (UTC)03-Sep-2011
Time (UTC)10:15
File nameX86_usbstor.inf_31bf3856ad364e35_6.1.7601.17684_none_4a420b13f64df50c.manifest
File versionNot Applicable
File size2,087
Date (UTC)03-Sep-2011
Time (UTC)10:25
File nameX86_usbstor.inf_31bf3856ad364e35_6.1.7601.21810_none_4b1358110f36690a.manifest
File versionNot Applicable
File size2,087
Date (UTC)03-Sep-2011
Time (UTC)12:14
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
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File nameAmd64_usbstor.inf_31bf3856ad364e35_6.1.7600.16877_none_a4881a5bb17a2a6a.manifest
File versionNot Applicable
File size2,091
Date (UTC)03-Sep-2011
Time (UTC)11:10
File nameAmd64_usbstor.inf_31bf3856ad364e35_6.1.7600.21045_none_a52ffe78ca8176f5.manifest
File versionNot Applicable
File size2,091
Date (UTC)03-Sep-2011
Time (UTC)11:14
File nameAmd64_usbstor.inf_31bf3856ad364e35_6.1.7601.17684_none_a660a697aeab6642.manifest
File versionNot Applicable
File size2,091
Date (UTC)03-Sep-2011
Time (UTC)11:08
File nameAmd64_usbstor.inf_31bf3856ad364e35_6.1.7601.21810_none_a731f394c793da40.manifest
File versionNot Applicable
File size2,091
Date (UTC)03-Sep-2011
Time (UTC)12:38
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
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File nameIa64_usbstor.inf_31bf3856ad364e35_6.1.7600.16877_none_486b22cdf91ac230.manifest
File versionNot Applicable
File size2,089
Date (UTC)03-Sep-2011
Time (UTC)11:08
File nameIa64_usbstor.inf_31bf3856ad364e35_6.1.7600.21045_none_491306eb12220ebb.manifest
File versionNot Applicable
File size2,089
Date (UTC)03-Sep-2011
Time (UTC)11:05
File nameIa64_usbstor.inf_31bf3856ad364e35_6.1.7601.17684_none_4a43af09f64bfe08.manifest
File versionNot Applicable
File size2,089
Date (UTC)03-Sep-2011
Time (UTC)11:01
File nameIa64_usbstor.inf_31bf3856ad364e35_6.1.7601.21810_none_4b14fc070f347206.manifest
File versionNot Applicable
File size2,089
Date (UTC)03-Sep-2011
Time (UTC)12:36

APPLIES TO
  • Windows 7 Service Pack 1, when used with:
    • Windows 7 Enterprise
    • Windows 7 Home Basic
    • Windows 7 Home Premium
    • Windows 7 Professional
    • Windows 7 Starter
    • Windows 7 Ultimate
  • Windows Server 2008 R2 Service Pack 1, when used with:
    • 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
Keywords: 
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