An update that improves the performance, responsiveness, and reliability of Windows Vista is available

Article ID: 943899 - View products that this article applies to.
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INTRODUCTION

This article contains an update that resolves issues that may affect some Windows Vista-based computers. These issues have been reported by customers who use the Error Reporting service or Microsoft Customer Support Services.

This update improves performance, responsiveness, and reliability of Windows Vista in various scenarios. This update resolves the following issues on a Windows Vista-based computer:
  • You receive a "Stop 0x000000A0" error when you try to switch the computer to the hibernate state.
  • You receive a "Stop 0x0000009f" error when you switch the computer to the hibernate state or to the standby state. Or, you receive this Stop error when you resume the computer from the hibernate state or from the standby state. This problem occurs on a computer that has a wireless network connection.
  • The disk does not spin down after a specified time of inactivity.
Additionally, this update can help improve performance when you perform operations that are related to large disk I/O. After you apply this update, you may notice up to a 15 percent performance improvement in some copying operations and when moving some large files.
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RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, 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

Update information

How to obtain this update

This update is available from the Windows Update Web site:
http://update.microsoft.com
(http://update.microsoft.com)
You can also download the update package and then manually apply it. The following files are available for download from the Microsoft Download Center.
Update for Windows Vista, 32-bit versions
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Download
Download the Update for Windows Vista package now.
(http://www.microsoft.com/downloads/details.aspx?FamilyId=A23E4401-74B7-4987-96AB-86735F718A8E)
Update for Windows Vista, 64-bit versions
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Download
Download the Update for Windows Vista for x64-based Systems package now.
(http://www.microsoft.com/downloads/details.aspx?FamilyId=D4106F71-A0C5-4798-A6A8-5CBC7D421C86)


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

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Vista, 32-bit versions
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File nameFile versionFile sizeDateTimePlatform
Windows6.0-kb943899-v2-x86.cabNot applicable2,704,29519-Jan-200803:26Not applicable
Windows6.0-kb943899-v2-x86.xmlNot applicable44519-Jan-200803:32Not applicable
Wsusscan.cabNot applicable159,82019-Jan-200803:29Not applicable
Nwifi.sys6.0.6000.16632154,62419-Jan-200803:06x86
Nwifi.sys6.0.6000.20757154,62419-Jan-200802:32x86
Ntfs.sys6.0.6000.165861,060,92026-Oct-200711:12x86
Ntfs.sys6.0.6000.207091,061,43226-Oct-200704:22x86
Oleaut32.dll6.0.6000.16588558,08030-Oct-200703:12x86
Oleaut32.dll6.0.6000.20711559,10430-Oct-200703:56x86
Ntkrnlpa.exe6.0.6000.165843,504,69624-Oct-200703:58Not applicable
Ntoskrnl.exe6.0.6000.165843,470,39224-Oct-200703:58Not applicable
Ntkrnlpa.exe6.0.6000.207073,505,72024-Oct-200704:13Not applicable
Ntoskrnl.exe6.0.6000.207073,471,92824-Oct-200704:13Not applicable
Aliide.sys1.2.0.017,46419-Jan-200805:06x86
Amdide.sys6.0.6000.1663217,97619-Jan-200805:06x86
Atapi.sys6.0.6000.1663221,56019-Jan-200805:06x86
Ataport.sys6.0.6000.16632109,62419-Jan-200805:08x86
Cmdide.sys2.0.7.019,00019-Jan-200805:06x86
Intelide.sys6.0.6000.1663217,46419-Jan-200805:06x86
Msahci.sys6.0.6000.1663225,65619-Jan-200805:06x86
Pciide.sys6.0.6000.1663215,92819-Jan-200805:06x86
Pciidex.sys6.0.6000.1663245,11219-Jan-200805:07x86
Viaide.sys5.1.3790.15020,02419-Jan-200805:07x86
Aliide.sys1.2.0.017,46419-Jan-200804:33x86
Amdide.sys6.0.6000.2075717,97619-Jan-200804:33x86
Atapi.sys6.0.6000.2075721,56019-Jan-200804:33x86
Ataport.sys6.0.6000.20757110,13619-Jan-200804:34x86
Cmdide.sys2.0.7.019,00019-Jan-200804:33x86
Intelide.sys6.0.6000.2075717,97619-Jan-200804:33x86
Msahci.sys6.0.6000.2075728,21619-Jan-200804:33x86
Pciide.sys6.0.6000.2075715,92819-Jan-200804:33x86
Pciidex.sys6.0.6000.2075745,11219-Jan-200804:33x86
Viaide.sys5.1.3790.15020,02419-Jan-200804:34x86
Volsnap.sys6.0.6000.16586211,00026-Oct-200711:14x86
Volsnap.sys6.0.6000.20709211,00026-Oct-200704:22x86
Windows Vista, 64-bit versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Windows6.0-kb943899-v2-x64.cabNot applicable3,577,90719-Jan-200803:26Not applicable
Windows6.0-kb943899-v2-x64.msuNot applicable3,739,07306-Mar-200802:52Not applicable
Windows6.0-kb943899-v2-x64.xmlNot applicable44719-Jan-200803:32Not applicable
Wsusscan.cabNot applicable157,65019-Jan-200803:29Not applicable
Nwifi.sys6.0.6000.16632189,95219-Jan-200803:15x64
Nwifi.sys6.0.6000.20757190,46419-Jan-200802:39x64
Ntfs.sys6.0.6000.165861,486,90426-Oct-200705:12x64
Ntfs.sys6.0.6000.207091,486,90426-Oct-200704:56x64
Oleaut32.dll6.0.6000.16588869,37630-Oct-200704:17x64
Oleaut32.dll6.0.6000.20711867,84030-Oct-200704:26x64
Ntoskrnl.exe6.0.6000.165844,428,34424-Oct-200705:38x64
Ntoskrnl.exe6.0.6000.207074,429,36824-Oct-200705:32x64
Aliide.sys1.2.0.018,48819-Jan-200805:09x64
Amdide.sys6.0.6000.1663218,48819-Jan-200805:09x64
Atapi.sys6.0.6000.1663222,58419-Jan-200805:09x64
Ataport.sys6.0.6000.16632123,96019-Jan-200805:10x64
Cmdide.sys2.0.7.020,53619-Jan-200805:09x64
Intelide.sys6.0.6000.1663219,00019-Jan-200805:09x64
Msahci.sys6.0.6000.1663227,19219-Jan-200805:09x64
Pciide.sys6.0.6000.1663215,92819-Jan-200805:09x64
Pciidex.sys6.0.6000.1663251,25619-Jan-200805:10x64
Viaide.sys5.1.3790.15020,53619-Jan-200805:11x64
Aliide.sys1.2.0.018,48819-Jan-200804:34x64
Amdide.sys6.0.6000.2075718,48819-Jan-200804:34x64
Atapi.sys6.0.6000.2075722,58419-Jan-200804:34x64
Ataport.sys6.0.6000.20757123,96019-Jan-200804:35x64
Cmdide.sys2.0.7.020,53619-Jan-200804:34x64
Intelide.sys6.0.6000.2075719,51219-Jan-200804:34x64
Msahci.sys6.0.6000.2075730,26419-Jan-200804:34x64
Pciide.sys6.0.6000.2075715,92819-Jan-200804:34x64
Pciidex.sys6.0.6000.2075751,25619-Jan-200804:34x64
Viaide.sys5.1.3790.15020,53619-Jan-200804:35x64
Volsnap.sys6.0.6000.16586250,93626-Oct-200705:13x64
Volsnap.sys6.0.6000.20709250,93626-Oct-200705:00x64
Oleaut32.dll6.0.6000.16588558,08030-Oct-200703:12x86
Oleaut32.dll6.0.6000.20711559,10430-Oct-200703:56x86

Known issues

  • Some users may experience a known issue after they manually apply this update from the Microsoft Download Center. In this issue, users may be unable to use Windows Explorer to eject removable media. However, only some users may experience this problem. To resolve this known issue, apply hotfix 941673. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
    941673
    (http://support.microsoft.com/kb/941673/ )
    After you add the CopyFileBufferedSynchronousIo registry entry in Windows Vista, a file copies only slightly more quickly when you use Windows Explorer to copy the file to another computer
  • Hard disk drives may not be recognized after update 943899 is applied. Certain SATA hard disk drives are not recognized after a computer resumes from sleep or hibernation when v1.0 of update 934899 has been applied. The drives are sent incorrect data, and the data changes several hard disk settings. One of these settings is “power up on standby mode." This behavior keeps the hard disk from spinning, and the system will not start. This hard disk problem was resolved by v2.0 of update 943899 which was published on February 11, 2008.
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MORE INFORMATION

If you install this fix, you do not have to install security update 943078 (security bulletin MS07-066). This article contains all the fixes that are included in security update 943078.

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
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Properties

Article ID: 943899 - Last Review: October 9, 2011 - Revision: 9.0
APPLIES TO
  • Windows Vista Ultimate
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
Keywords: 
atdownload kbvistasp1fix kbexpertisebeginner kbwinvistapostrtmfix kbexpertiseinter kbqfe KB943899
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