Driver load times are much longer in Windows PE 3.0 than in Windows PE 2.1 on a computer that is running Windows 7 or Windows Server 2008 R2

Applies to: Windows Server 2008 R2Windows 7

Symptoms


On a computer that is running Windows 7 or Windows Server 2008 R2, you use the Drvload tool (Drvload.exe) to add some out-of-box drivers through Windows Preinstallation Environment (PE) 3.0. However, you notice that it takes much longer to load the drivers than when you load the same drivers through Windows PE 2.1.

Cause


This issue occurs because of a design change in the driver store of Windows 7 and of Windows Server 2008 R2.

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 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 Windows 7 or Windows Server 2008 R2.

Installation instructions

To install this hotfix, follow these steps.

Note To apply this hotfix on an x64-based or IA-64-based computer, replace "x86" with "x64" or "ia64" in the commands in steps 1 and 2. 
  1. Manually extract the files to a temporary location. To do this, run the following commands:

    Expand -f:* Path \Windows6.1-KB2276755-x86.msu Target Path
    Expand -f:* Path \Windows6.1-KB2276755-x86.cab Target Path
  2. Mount the Winpe.wim file by running the Imagex.exe tool together with the /mountrw syntax. To do this, run the following command:

    IMAGEX.EXE /mountrw Path of the Winpe.wim 1 Staging area
  3. Copy the updated Drvstore.dll and Setupapi.dll files to the System32\drivers directory of the mounted Winpe.wim file.
  4. Unmount the Winpe.wim file by using the Imagex.exe tool together with the /commit syntax. To do this, run the following command:

    IMAGEX.EXE /commit

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) 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 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
Drvstore.dll6.1.7600.20757319,48817-Jul-201007:23x86
Setupapi.dll6.1.7600.207571,668,60817-Jul-201007:27x86
Setupapi.mofNot Applicable3,68910-Jun-200921:46Not Applicable
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Drvstore.dll6.1.7600.20757418,30417-Jul-201008:05x64
Setupapi.dll6.1.7600.207571,899,52017-Jul-201008:06x64
Setupapi.mofNot Applicable3,68910-Jun-200921:08Not Applicable
Wowreg32.exe6.1.7600.1638516,38414-Jul-200901:39x64
Setupapi.dll6.1.7600.207571,668,60817-Jul-201007:27x86
Setupapi.mofNot Applicable3,68910-Jun-200921:46Not Applicable
Wowreg32.exe6.1.7600.1638514,33613-Jul-200923:16x86
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Drvstore.dll6.1.7600.20757733,18417-Jul-201006:41IA-64
Setupapi.dll6.1.7600.207572,768,89617-Jul-201006:46IA-64
Setupapi.mofNot Applicable3,68910-Jun-200921:13Not Applicable
Wowreg32.exe6.1.7600.1638528,67214-Jul-200901:45IA-64
Setupapi.dll6.1.7600.207571,668,60817-Jul-201007:27x86
Setupapi.mofNot Applicable3,68910-Jun-200921:46Not Applicable
Wowreg32.exe6.1.7600.1638514,33613-Jul-200923:16x86

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 Drvload command-Line options, visit the following Microsoft website: 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 nameX86_5d4e828b638101be85339d4f211bd185_31bf3856ad364e35_6.1.7600.20757_none_92834d4d60951c12.manifest
File versionNot Applicable
File size696
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameX86_f5c94a17cd5bf0824fc0dd97c7dfd828_31bf3856ad364e35_6.1.7600.20757_none_f1814379a85069a5.manifest
File versionNot Applicable
File size696
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameX86_microsoft-windows-drvstore_31bf3856ad364e35_6.1.7600.20757_none_f176be23bddc3914.manifest
File versionNot Applicable
File size2,732
Date (UTC)17-Jul-2010
Time (UTC)08:03
PlatformNot Applicable
File nameX86_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7600.20757_none_3577c2a94094e5e0.manifest
File versionNot Applicable
File size7,065
Date (UTC)17-Jul-2010
Time (UTC)08:07
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_4dcb27af2c5299b990df71d8b4863264_31bf3856ad364e35_6.1.7600.20757_none_51bf4d0f5bfbf31a.manifest
File versionNot Applicable
File size1,042
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameAmd64_5d4e828b638101be85339d4f211bd185_31bf3856ad364e35_6.1.7600.20757_none_eea1e8d118f28d48.manifest
File versionNot Applicable
File size698
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameAmd64_70ab49c6ffeb369379957b9c3208ac70_31bf3856ad364e35_6.1.7600.20757_none_89673d790482450d.manifest
File versionNot Applicable
File size700
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameAmd64_b146cb400892497e9a7287b5a65b9eff_31bf3856ad364e35_6.1.7600.20757_none_1bfd843e779d6151.manifest
File versionNot Applicable
File size700
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameAmd64_c58cd8c7d66b1c8e2fa15b0b82b1fea4_31bf3856ad364e35_6.1.7600.20757_none_d13e6e6643686b1c.manifest
File versionNot Applicable
File size1,040
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameAmd64_microsoft-windows-drvstore_31bf3856ad364e35_6.1.7600.20757_none_4d9559a77639aa4a.manifest
File versionNot Applicable
File size2,736
Date (UTC)17-Jul-2010
Time (UTC)08:47
PlatformNot Applicable
File nameAmd64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7600.20757_none_91965e2cf8f25716.manifest
File versionNot Applicable
File size7,908
Date (UTC)20-Jul-2010
Time (UTC)23:32
PlatformNot Applicable
File nameWow64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7600.20757_none_9beb087f2d531911.manifest
File versionNot Applicable
File size7,914
Date (UTC)20-Jul-2010
Time (UTC)23:32
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_2c0227ac870971bca137ae61287d27f4_31bf3856ad364e35_6.1.7600.20757_none_5305984b6ba8ce14.manifest
File versionNot Applicable
File size1,038
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameIa64_564faaeb1ea2b897f2d7b83982a14db6_31bf3856ad364e35_6.1.7600.20757_none_a4f3d50cdf6d90f2.manifest
File versionNot Applicable
File size1,040
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameIa64_microsoft-windows-drvstore_31bf3856ad364e35_6.1.7600.20757_none_f1786219bdda4210.manifest
File versionNot Applicable
File size2,734
Date (UTC)17-Jul-2010
Time (UTC)08:45
PlatformNot Applicable
File nameIa64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7600.20757_none_3579669f4092eedc.manifest
File versionNot Applicable
File size7,906
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable
File nameWow64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7600.20757_none_9beb087f2d531911.manifest
File versionNot Applicable
File size7,914
Date (UTC)20-Jul-2010
Time (UTC)23:24
PlatformNot Applicable