SGH_WIKI

Change ISO content in windows without using 3rd party tools

Here provides a batch script to auto modify ISO file without using 3rd party tools, ie, add a new file Autounattend.xml into the windows 11 ISO file. But it requires to install windows ADK. Note: it requires admin right to run this batch command.

make_win11_bypass.bat

@echo off
setlocal

:: ===== Admin check =====
>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"
if '%errorlevel%' NEQ '0' (
    echo Please run this script as Administrator!
    pause
    exit /b
)

:: ===== Configuration =====
set "OSCDIMG=C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Deployment Tools\amd64\Oscdimg\oscdimg.exe"
set "ISO_PATH=D:\win11\Win11_24H2_English_x64.iso"
set "WORK_DIR=D:\ISO_Mod"
set "NEW_ISO=D:\win11\Win11_24H2_English_x64_Bypass.iso"

:: ===== Check oscdimg =====
if not exist "%OSCDIMG%" (
    echo Not find oscdimg tool. Please check OSCDIMG path.
    pause
    exit /b 1
)

:: ===== Create working directory =====
if exist "%WORK_DIR%" rd /s /q "%WORK_DIR%"
mkdir "%WORK_DIR%"

:: ===== Mount ISO and get drive letter =====
echo [INFO] Mounting ISO...
for /f "usebackq tokens=*" %%D in (`powershell -NoProfile -Command ^
    "$d = Mount-DiskImage -ImagePath '%ISO_PATH%' -PassThru | Get-Volume; Write-Output $d.DriveLetter"`) do set "ISODRIVE=%%D:"
 
if not exist "%ISODRIVE%\" (
    echo [Error] ISO mount failed
    pause
    exit /b 1
)
echo [INFO] ISO mounted at %ISODRIVE%

:: ===== Copy ISO contents =====
echo [INFO] Copy ISO Files...
xcopy "%ISODRIVE%\*" "%WORK_DIR%\" /E /H /K >nul

:: ===== Dismount ISO =====
powershell Dismount-DiskImage -ImagePath "%ISO_PATH%" >nul

:: ===== Create Autounattend.xml =====
echo [INFO] Generate Autounattend.xml...
(
echo ^<unattend xmlns="urn:schemas-microsoft-com:unattend"^>
echo     ^<settings pass="windowsPE"^>
echo         ^<component name="Microsoft-Windows-Setup" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS"^>
echo             ^<RunSynchronous^>
echo                 ^<RunSynchronousCommand wcm:action="add"^>
echo                     ^<Order^>1^</Order^>
echo                     ^<Path^>reg add HKLM\SYSTEM\Setup\LabConfig /v BypassTPMCheck /t REG_DWORD /d 1 /f^</Path^>
echo                 ^</RunSynchronousCommand^>
echo                 ^<RunSynchronousCommand wcm:action="add"^>
echo                     ^<Order^>2^</Order^>
echo                     ^<Path^>reg add HKLM\SYSTEM\Setup\LabConfig /v BypassSecureBootCheck /t REG_DWORD /d 1 /f^</Path^>
echo                 ^</RunSynchronousCommand^>
echo             ^</RunSynchronous^>
echo         ^</component^>
echo     ^</settings^>
echo ^</unattend^>
) > "%WORK_DIR%\Autounattend.xml"

:: ===== Create New ISO =====
echo [INFO] Creating new ISO...
"%OSCDIMG%" -m -o -u2 -udfver102 "%WORK_DIR%" "%NEW_ISO%"
 
echo.
echo [DONE] New ISO created:
echo %NEW_ISO%
pause