Script for setting up the Vista or Win-7 BCD to boot WinPE from hard disk files. No partitioning required. RRS feed

  • General discussion

  • I find it very convenient to boot WinPE from the HD instead of finding the thumb-drive or CD to boot from. So, I've worked up this cmd.exe script to assist me with setting up WinPE to boot from hard disk files. It is fairly robust, works for me on many different machines, so thought it would be good to share it. Use it, dissect it, borrow parts for other tasks - shucks. Have a ball.

    @echo off
    rem   Note: This script for WinPE for Windows Vista sp1
    rem   For adding entries into the BCD store to set up WinPE to load from a HDD location.
    rem   The boot files are copied from a working WinPE bootable CDrom disk.
    rem   The point is to be able to boot WinPE from the HDD without needing to find the
    rem    bootable CD disk. 
    rem   For safety this script exports the system BCD store to a temporary store
    rem    then edits the temporary store. After success, the temporary store is
    rem    imported into the system BCD store.
    rem   As scripted here, the WinPE boot files must exist on this drive and path:
    rem     drive   D:        ( variable WPDrv )
    rem     folder  \wpeboot  ( variable WPPth )
    rem   The Drive and Path to the WinPE boot files can be changed by
    rem    modifying two cmd.exe set statements (below) before executing this script.
    rem   To change the location later, run the 'delete' script, move the files,
    rem    modify this script and add the settings again.
    rem   Typically there will be two WinPE boot files 
    rem     boot.Wim          ( variable WimNm )
    rem     boot.Sdi          ( variable SdiNm )
    rem   You will copy them manually from the working Winpe boot cd rom disk
    rem    \sources\boot.wim and \boot\boot.sdi locations into the D:\wpeboot folder.
    rem   Assuming that the WinPE boot CD was created normally the .wim
    rem    file is named boot.wim and the .sdi file is named boot.sdi 
    rem    If you rename them you must fix the set statements (below) appropriately.
    rem   This script creates the osloader entry and the device options entry for it,
    rem     obtaining the randomly created GUIDs (variables guid1 and guid2).
    rem   This script also creates 'DelWinpe.cmd' command file for you to use if
    rem     required to remove those two entries from the BCD store. This also gives
    rem     you a permanent record of the two ramdomly generated GUIDs.
    echo Exporting the system BCD store to BcdTemp
    bcdedit /export BcdTemp
    if errorlevel 1 echo Error - we need to have admin privileges.
    if errorlevel 1 goto Endit
    rem Set the name of the Winpe .wim file
    set WimNm=boot.wim
    rem Set the name of the WinPE .sdi file
    set SdiNm=boot.sdi
    rem Set the drive where the two WinPE boot files are located ( x: with no \ )
    set WPDrv=D:
    rem Set the folder path to the WinPE boot files ( no drive letter, no trailing \ )
    set WPPth=\wpeboot
    rem Description that shows up in the boot menu
    set WPDes="WinPE 6.0.6001 (Vista sp1)"
    rem Create the osloader and device options entries in the bcd store.
    rem Get the randomly created GUID numbers that uniquely identify our two entries.
    For /F "tokens=3 delims= " %%1 in ('bcdedit.exe /store BcdTemp /create /application OSLOADER /d %WPDes%') do set guid1=%%1
    echo Osloader entry id is %guid1%
    For /F "tokens=3 delims= " %%1 in ('bcdedit.exe /store BcdTemp /create /device /d %WPDes%') do set guid2=%%1
    echo Device options entry id is %guid2%
    echo Setting items in the osloader entry
    bcdedit /store BcdTemp /set %guid1% device ramdisk=[%WPDrv%]%WPPth%\%WimNm%,%guid2%
    bcdedit /store BcdTemp /set %guid1% osdevice ramdisk=[%WPDrv%]%WPPth%\%WimNm%,%guid2%
    bcdedit /store BcdTemp /set %guid1% path \windows\system32\boot\winload.exe
    bcdedit /store BcdTemp /set %guid1% locale en-US
    bcdedit /store BcdTemp /set %guid1% inherit {bootloadersettings}
    bcdedit /store BcdTemp /set %guid1% systemroot \windows
    bcdedit /store BcdTemp /set %guid1% detecthal Yes
    bcdedit /store BcdTemp /set %guid1% winpe Yes
    bcdedit /store BcdTemp /set %guid1% ems No
    echo Setting items in the device options entry
    bcdedit /store BcdTemp /set %guid2% ramdisksdidevice partition=%WPDrv%
    bcdedit /store BcdTemp /set %guid2% ramdisksdipath %WPPth%\%SdiNm%
    echo Setting bootmgr to include the WinPE entry in the boot display list
    bcdedit /store BcdTemp /set {bootmgr} displayorder %guid1% /addlast
    rem Create an undo cmd file to delete the entries directly from the system bcd store.
    echo Creating the DelWinpe.cmd undo command file
    echo bcdedit /delete %guid1% >>DelWinpe.cmd
    echo bcdedit /delete %guid2% >>DelWinpe.cmd
    echo Display bootmgr and the two new entries
    bcdedit /store BcdTemp /enum {bootmgr}
    bcdedit /store BcdTemp /enum %guid1%
    bcdedit /store BcdTemp /enum %guid2%
    If errorlevel 1 echo Error - something went awry. Not importing the temporary store.
    If errorlevel 1 goto Endit
    echo Ready to import the temporary store into bcd system store...
    echo Importing BcdTemp into the system BCD store.
    bcdedit /import BcdTemp
    set guid1=
    set guid2=
    set WpDrv=
    set WPPth=
    set WimNm=
    set SdiNm=
    set WPDes=
    echo done
    Friday, July 31, 2009 11:00 PM

All replies

  • Hi Bit fiddler,

    I could really do with your help.  I have been working on this for weeks and it looks like you seem to know what your doing in order for you to have written a script to automate the task. :)

    So, straight to the point...

    I have a system with XP already installed.  I have a "Bootable Windows PE RAM Media" (A bootable WinPE 3.0 enviroment aka boot.wim, and i also have it as boot.iso).

    I am simply trying to figure out a way of making a change (or a few changes) to switch the system so that when it is restarted it is booted into the WinPE (no dual  boot options).  Then making another change (or a few), the system will be back to normal when it is next restarted.

    I've looked the 2 most popular examples on lots of boards,

    1) Copy a win2003-sp2 setupldr.bin and rename it to ntldr, and copy the ntdetect.com files along with a little winnt.sif file and my winpe.iso to the c: drive

    2) Using bcdedit, change the bootsector loader information.


    1) It boots the new loader, following the instructions in the winnt.sif to virtually load the winpe.iso but stops at an error "File \$WIN_NT$.~BT\biosinfo.inf could not be loaded..." (this is weird, I've searched through the files and this requied file is nowhere to be found).

    2) The has not changed affect and still shows the results of the attempt above. Also, I wouldnt know how to reverse this step in order to go back to having the normal boot sequence.


    Could you shed any light at all on this please?

    Thanks in advanced.


    Sunday, July 11, 2010 2:54 AM
  • i have a problem, for some reason i deleted my Bootable Recovery Partition, and i dont know how to recover it. please i need help, sory bad english
    Monday, August 9, 2010 4:08 PM
  • Bitfiddler,

    I recently cannot enter the recovery environment after rebooting and pressing F8. When I select "repair my computer." it just boots to my desktop normally, instead of entering recovery mode. I am including my bcdedit /enum all below. Could you please take a look and see if you can identify what the problem might be?

    Microsoft Windows [Version 6.1.7600]
    Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

    C:\Windows\system32>bcdedit /enum all

    Windows Boot Manager
    identifier              {bootmgr}
    device                  partition=\Device\HarddiskVolume2
    description             Windows Boot Manager
    locale                  en-us
    inherit                 {globalsettings}
    default                 {current}
    resumeobject            {2d1020e0-9b28-11df-a002-a4badbfacbd8}
    displayorder            {current}
    toolsdisplayorder       {memdiag}
    timeout                 30

    Windows Boot Loader
    identifier              {current}
    device                  partition=C:
    path                    \Windows\system32\winload.exe
    description             Windows 7
    locale                  en-us
    inherit                 {bootloadersettings}
    recoverysequence        {2d1020e2-9b28-11df-a002-a4badbfacbd8}
    recoveryenabled         Yes
    osdevice                partition=C:
    systemroot              \Windows
    resumeobject            {2d1020e0-9b28-11df-a002-a4badbfacbd8}
    nx                      OptIn
    bootstatuspolicy        IgnoreShutdownFailures

    Windows Boot Loader
    identifier              {7a17869d-c7c3-11df-92d7-a4badbfacbd8}
    device                  ramdisk=[\Device\HarddiskVolume2]\Recovery\WindowsRE\Win
    path                    \windows\system32\winload.exe
    description             Windows Recovery Environment
    inherit                 {bootloadersettings}
    osdevice                ramdisk=[\Device\HarddiskVolume2]\Recovery\WindowsRE\Win
    systemroot              \windows
    nx                      OptIn
    winpe                   Yes

    Resume from Hibernate
    identifier              {2d1020e0-9b28-11df-a002-a4badbfacbd8}
    device                  partition=C:
    path                    \Windows\system32\winresume.exe
    description             Windows Resume Application
    locale                  en-US
    inherit                 {resumeloadersettings}
    filedevice              partition=C:
    filepath                \hiberfil.sys
    debugoptionenabled      No

    Windows Memory Tester
    identifier              {memdiag}
    device                  partition=\Device\HarddiskVolume2
    path                    \boot\memtest.exe
    description             Windows Memory Diagnostic
    locale                  en-US
    inherit                 {globalsettings}
    badmemoryaccess         Yes

    EMS Settings
    identifier              {emssettings}
    bootems                 Yes

    Debugger Settings
    identifier              {dbgsettings}
    debugtype               Serial
    debugport               1
    baudrate                115200

    RAM Defects
    identifier              {badmemory}

    Global Settings
    identifier              {globalsettings}
    inherit                 {dbgsettings}

    Boot Loader Settings
    identifier              {bootloadersettings}
    inherit                 {globalsettings}

    Hypervisor Settings
    identifier              {hypervisorsettings}
    hypervisordebugtype     Serial
    hypervisordebugport     1
    hypervisorbaudrate      115200

    Resume Loader Settings
    identifier              {resumeloadersettings}
    inherit                 {globalsettings}

    Device options
    identifier              {7a17869e-c7c3-11df-92d7-a4badbfacbd8}
    description             Ramdisk Options
    ramdisksdidevice        partition=\Device\HarddiskVolume2
    ramdisksdipath          \Recovery\WindowsRE\boot.sdi


    Sunday, October 10, 2010 1:14 PM