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Walkthrough: Create a Custom Windows PE Image

This walkthrough describes how to create a customized Windows PE image. The primary tool for customizing Windows PE 2.0 is PEImg, a Windows PE command-line tool. After creating a customized image, you can deploy the image to a hard disk or create a bootable Windows PE RAM disk on a CD-ROM, a USB flash drive (UFD) or a hard disk.

noteNote
A Windows PE RAM disk boots directly into memory and is assigned the drive letter X, which does not correspond to the media (for example, a UFD or a CD-ROM) from which you booted. Ensure that you have sufficient memory to support the size of your Windows PE image plus any additional memory requirements, for example, if you plan on running any customized applications that need additional working memory.

Prerequisites

To complete this walkthrough, you need the following:

Step 1: Set up a Windows PE Build Environment

In this step, you create a required directory structure that supports building a Windows PE image.

  1. On your technician computer, click Start, point to All Programs, point to Windows OPK or Windows AIK, and then click Windows PE Tools Command Prompt.
    The menu shortcut opens a Command Prompt window and automatically sets environment variables to point to all the necessary tools. By default, all tools are installed at C:\Program Files\version\Tools, where version can be Windows OPK or Windows AIK.
  2. At the command prompt, run the Copype.cmd script. The script requires two arguments: hardware architecture and destination location. For example,
    copype.cmd <architecture> <destination>
    
    where <architecture> can be x86, amd64, or ia64 and <destination> is a path to the local directory. For example,
    copype.cmd x86 c:\winpe_x86
    
    The script creates the following directory structure and copies all the necessary files for that architecture. For example,
    \winpe_x86
    \winpe_x86\ISO
    \winpe_x86\mount
    

Step 2: Mount the Base Windows PE Image

In this step, you mount the base image to a local directory so that you can add or remove packages.

  • At the command prompt, mount the base Windows PE image (Winpe.wim) to the \Mount directory by using ImageX. For example,
    imagex /mountrw c:\winpe_x86\winpe.wim 1 c:\winpe_x86\mount
    

Step 3: Add Additional Packages

By using the Peimg tool, you install Windows features by using the /install option. Windows features are included with the base image (Winpe.wim) but are not installed. You can also import packages and add drivers and language packs. For more information, see Windows PE Customization How-To Topics.

  1. Add a Windows feature to the base image by using the peimg /install command. For example,
    peimg /install=<pkg> c:\winpe_x86\mount\Windows
    
    where <pkg> denotes the package name. A list of available packages and their names can be obtained by using the /list command. You can use wildcards to specify a package name. Any packages with matching names will be installed. For example,
    peimg /install=WinPE-HTA-Package c:\winpe_x86\mount\Windows
    
    -or-
    peimg /install=*HTA* c:\winpe_x86\mount\Windows
    
    where wildcards denote any package with HTA in the package name.
    Windows PE 2.0 provides the following Windows features referred to as packages.

     

    Package Name Description

    WinPE-FONTSupport-<region>-Packages

    Additional font support for ja-jp, ko-kr, zh-cn, zh-hk, and zh-tw.

    WinPE-HTA-Package

    HTML application support

    WinPE-MDAC-Package

    Microsoft Data Access Component support

    WinPE-Scripting-Package

    Windows Script Host support

    WinPE-SRT-Package

    Windows Recovery Environment component (available only on the Windows OPK)

    WinPE-WMI-Packages

    Windows Management Instrumentation (WMI) support

    WinPE-XML-Package

    Microsoft XML (MSXML) parser support

  2. Repeat Step 1 for each package.
  3. Verify that the packages were installed by using the peimg /list command to view all packages in the current image. For example,
    peimg /list c:\winpe_x86\mount\Windows
    
    In the INS column, (+) denotes installed packages and (-) denotes not installed.

Step 4: (Optional) Add Additional Customizations

This step is optional but recommended. You can add applications and scripts to your Windows PE image that you might need while working in Windows PE. The following is a list of common tools to include in your Windows PE image.

  • ImageX
    A command-line tool for capturing and applying images during deployment scenarios. For example, at a command prompt,
    copy “c:\program files\<version>\Tools\x86\imagex.exe” c:\winpe_x86\iso\
    
  • Package Manager (Pkgmgr.exe)
    A tool for servicing Windows image (.wim) files offline. You must copy the entire \Servicing folder and MSXML6 binaries. Offline servicing requires ImageX. For example,
    xcopy “c:\program files\<version>\Tools\<architecture>\Servicing” c:\winpe_x86\iso\Servicing /s
    
    copy %windir%\system32\msxml6*.dll c:\winpe_x86\iso\Servicing
    where <version> can be Windows OPK or Windows AIK and <architecture> can be x86, amd64 or ia64. In both previous examples, the tools are not loaded into memory during a Windows PE RAM boot. The media must be available to access the tools.
    To load the tools into memory along with Windows PE, copy the source files into the mounted \Windows directory. For example,
    c:\winpe_x86\mount\Windows
    
    ImportantImportant
    Adding files to the \Windows directory will increase the size of your Windows PE RAM image. Ensure that your computer has sufficient memory to boot Windows PE and to run various applications.

Step 5: Prepare the Image

In this step, you prepare the image by using the peimg /prep command. This operation removes any non-installed packages from the final image. This operation reduces the overall image size. For example,

peimg /prep c:\winpe_x86\mount\Windows

The /prep option cannot be reverted, and after the /prep option is run, the /install, /uninstall, /import, and /list options will not function, while the /lang and /inf options will continue to function. The Peimg tool prompts you to confirm the command. To suppress this prompt for scripting, add the /f option.

Step 6: Commit Changes to the Image

In this step, you commit the changes to the original image file (Winpe.wim) by using the ImageX /unmount option with the /commit option. For example,

imagex /unmount c:\winpe_x86\mount /commit

Step 7: Replace the Default Boot.wim File

In this step, you replace the default Boot.wim in the \ISO directory with your new customized image. The image must be called Boot.wim. For example,

copy c:\winpe_x86\winpe.wim c:\winpe_x86\ISO\sources\boot.wim

Next Step

You now have a customized Windows PE RAM disk image that you can place on bootable media, like a CD-ROM or a UFD.

To create a bootable CD-ROM

  1. On your technician computer, at a command prompt, create an .iso file by using Oscdimg. For example,
    oscdimg -n -bc:\winpe_x86\etfsboot.com c:\winpe_x86\ISO c:\winpe_x86\winpe_x86.iso
    
    For IA-64 architecture, replace Etfsboot.com with Efisys.bin.
  2. Burn the image (Winpe_x86.iso) to a CD-ROM.

To create a bootable UFD

  1. During a running Windows Vista operation system or a Windows PE session, insert your UFD device.
  2. At a command prompt, use Diskpart to format the device as FAT32 spanning the entire device, setting the partition to active. For example,
    diskpart
    select disk 1
    clean
    create partition primary size=<size of device>
    select partition 1
    active
    format fs=fat32
    assign
    exit
    
    where the value of disk 1 is equal to UFD.
  3. On your technician computer, copy all the content in the \ISO directory to your UFD device. You can manually create the directory structure or use the xcopy command to automatically build and copy the appropriate files from your technician computer to your UFD device. For example,
    xcopy c:\winpe_x86\iso\*.* /s /e /f f:\
    
    where c is the letter of your technician computer hard disk and f is the letter of your UFD device.

You can further customize your Windows PE image by adding language packs, customized scripts, and drivers. For more information, see Windows PE Customization How-To Topics.

See Also

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