@echo off
SETLOCAL EnableExtensions EnableDelayedExpansion

echo Checking for administrative privileges...
net session >nul 2>&1
if %errorlevel% neq 0 (
    echo This script requires administrative privileges.
    echo Please run it as an administrator.
    pause
    exit /b 1
)

@echo off
SETLOCAL EnableExtensions EnableDelayedExpansion

@echo off
SETLOCAL EnableExtensions EnableDelayedExpansion

@echo off
SETLOCAL EnableExtensions EnableDelayedExpansion

echo Define the default Steam folder path and script names
SET "STEAM_FOLDER=C:\Program Files (x86)\Steam"
SET "SCRIPT_NAME=DelayedExplorerStart.bat"
SET "SCRIPT_PATH=%STEAM_FOLDER%\%SCRIPT_NAME%"
SET "EXPLORER_PATH=C:\Windows\explorer.exe"
SET "VBS_NAME=RunBatchSilently.vbs"
SET "VBS_PATH=%STEAM_FOLDER%\%VBS_NAME%"
SET "STEAM_PATH=C:\Program Files (x86)\Steam\Steam.exe"
SET "STEAM_ARGS=-bigpicture -nobootstrapupdate -skipinitialbootstrap -skipverifyfiles"
SET "WRAPPER_VBS_PATH=%STEAM_FOLDER%\SteamWrapper.vbs"  :: Combined VBS to handle Steam launch
SET "MANIFEST_PATH=%STEAM_PATH%.manifest"
SET "REGISTRY_KEY=HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon"
SET "SHELL_VALUE=Shell"

:: Create the manifest file to force admin privileges for Steam
echo Creating manifest file for Steam to run as admin...
(
echo ^<?xml version="1.0" encoding="UTF-8" standalone="yes"?^>
echo ^<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"^>
echo     ^<trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"^>
echo         ^<security^>
echo             ^<requestedPrivileges^>
echo                 ^<requestedExecutionLevel level="requireAdministrator" uiAccess="false"/^>
echo             ^</requestedPrivileges^>
echo         ^</security^>
echo     ^</trustInfo^>
echo ^</assembly^>
) > "%MANIFEST_PATH%"

if %errorlevel% neq 0 (
    echo Failed to create manifest file!
    pause
    exit /b 1
)
echo Manifest file created successfully at %MANIFEST_PATH%.

:: Set Steam as the shell in the registry
echo Setting Steam as the shell in the Windows registry...
reg add "%REGISTRY_KEY%" /v %SHELL_VALUE% /d "\"%STEAM_PATH%\"" /f

if %errorlevel% neq 0 (
    echo Failed to set Steam as the shell in the registry!
    pause
    exit /b 1
)
echo Steam set as the shell successfully.

echo Creating RunBatchSilently.vbs script

:: Create VBScript to run the batch file silently
(
    echo Set WshShell = CreateObject("WScript.Shell")
    echo WshShell.Run chr(34) ^& "%SCRIPT_PATH%" ^& chr(34), 0, True
    echo Set WshShell = Nothing
) > "%VBS_PATH%"
if %errorlevel% neq 0 (
    echo Error creating RunBatchSilently.vbs
    pause
    exit /b 1
)

echo Creating SteamWrapper.vbs script

:: Create the SteamWrapper.vbs script to launch Steam with arguments
(
    echo Set WshShell = CreateObject("WScript.Shell")
    echo WshShell.Run chr(34) ^& "%STEAM_PATH%" ^& chr(34) ^& " " ^& "%STEAM_ARGS%", 0, False
    echo Set WshShell = Nothing
) > "%WRAPPER_VBS_PATH%"

if %errorlevel% neq 0 (
    echo Error creating SteamWrapper.vbs
    pause
    exit /b 1
)

echo Creating DelayedExplorerStart.bat script

:: Create the DelayedExplorerStart.bat script in the Steam folder
(
    echo @echo off
    echo REM Check if user is logged on
    echo whoami ^| find /i "%USERNAME%" ^>nul
    echo if ERRORLEVEL 1 exit
    echo REM Set Shell back to Explorer
    echo REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "%EXPLORER_PATH%" /f
    echo timeout /t 20 /nobreak ^>nul
    echo start "" "%EXPLORER_PATH%"
    echo timeout /t 10 /nobreak ^>nul
    echo REM Set Shell back to the VBS script that launches Steam
    echo REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "\"%WRAPPER_VBS_PATH%\"" /f
) > "%SCRIPT_PATH%"

if %errorlevel% neq 0 (
    echo Error creating DelayedExplorerStart.bat
    pause
    exit /b 1
)

echo Script creation completed successfully!
pause

echo Create XML file for the scheduled task
SET XML_PATH=%STEAM_FOLDER%\DelayedExplorerStartTask.xml

echo Delete the existing XML file if it exists
IF EXIST "%XML_PATH%" DEL "%XML_PATH%"

(
echo ^<?xml version="1.0" encoding="UTF-8"?^>
echo ^<Task version="1.2" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task"^>
echo   ^<RegistrationInfo^>
echo     ^<Date^>2020-01-01T00:00:00^</Date^>
echo     ^<Author^>%USERNAME%^</Author^>
echo     ^<Description^>Run DelayedExplorerStart.bat at logon.^</Description^>
echo   ^</RegistrationInfo^>
echo   ^<Triggers^>
echo     ^<LogonTrigger^>
echo       ^<Enabled^>true^</Enabled^>
echo     ^</LogonTrigger^>
echo   ^</Triggers^>
echo   ^<Principals^>
echo     ^<Principal id="Author"^>
echo       ^<UserId^>%USERNAME%^</UserId^>
echo       ^<LogonType^>InteractiveToken^</LogonType^>
echo       ^<RunLevel^>HighestAvailable^</RunLevel^>
echo     ^</Principal^>
echo   ^</Principals^>
echo   ^<Settings^>
echo       ^<MultipleInstancesPolicy^>IgnoreNew^</MultipleInstancesPolicy^>
echo       ^<DisallowStartIfOnBatteries^>false^</DisallowStartIfOnBatteries^>
echo       ^<StopIfGoingOnBatteries^>false^</StopIfGoingOnBatteries^>
echo       ^<AllowHardTerminate^>true^</AllowHardTerminate^>
echo       ^<StartWhenAvailable^>true^</StartWhenAvailable^>
echo       ^<RunOnlyIfNetworkAvailable^>false^</RunOnlyIfNetworkAvailable^>
echo       ^<IdleSettings^>
echo         ^<StopOnIdleEnd^>true^</StopOnIdleEnd^>
echo         ^<RestartOnIdle^>false^</RestartOnIdle^>
echo       ^</IdleSettings^>
echo       ^<Enabled^>true^</Enabled^>
echo       ^<Hidden^>false^</Hidden^>
echo       ^<WakeToRun^>false^</WakeToRun^>
echo       ^<ExecutionTimeLimit^>PT72H^</ExecutionTimeLimit^>
echo       ^<Priority^>7^</Priority^>
echo   ^</Settings^>
echo   ^<Actions Context="Author"^>
echo     ^<Exec^>
echo       ^<Command^>wscript.exe^</Command^>
echo       ^<Arguments^>"%VBS_PATH%"^</Arguments^>
echo     ^</Exec^>
echo   ^</Actions^>
echo ^</Task^>
) > "%XML_PATH%"

echo Delete the existing scheduled task if it exists
schtasks /delete /tn "RunDelayedExplorerStart" /f

echo Create the scheduled task using the XML file
IF EXIST "%XML_PATH%" (
    schtasks /create /tn "RunDelayedExplorerStart" /xml "%XML_PATH%" >nul 2>&1
    if %errorlevel% neq 0 (
        echo Error creating scheduled task
        pause
        exit /b 1
    ) else (
        echo [SUCCESS] Scheduled task 'RunDelayedExplorerStart' created.
    )
) else (
    echo [ERROR] XML file for scheduled task does not exist.
    pause
    exit /b 1
)

echo Delayed Explorer start script and VBScript created in Steam folder.
echo Scheduled Task added to run the script at logon.
echo XML file for Scheduled Task created.

echo Disable the boot UI
bcdedit.exe -set {globalsettings} bootuxdisabled on

echo Disable Visual Effects
reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v VisualEffects /t REG_DWORD /d 3 /f

echo Increase File System Performance
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem" /v NtfsDisableLastAccessUpdate /t REG_DWORD /d 1 /f

echo Optimize Paging File Performance
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v DisablePagingExecutive /t REG_DWORD /d 1 /f

echo Disable Startup Delay
reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Serialize" /f
reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Serialize" /v StartupDelayInMSec /t REG_DWORD /d 0 /f

echo Improve Windows Explorer Process Priority
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\PerfOptions" /v CpuPriorityClass /t REG_DWORD /d 3 /f
echo Adjust Large System Cache
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v LargeSystemCache /t REG_DWORD /d 1 /f
echo Enabling No GUI Boot
bcdedit /set {current} quietboot on

echo Registry modifications are complete.
echo Steam Big Picture set as default shell.
echo Automatic logon enabled.
echo Boot UI disabled.
echo The first time Steam is launched after running this script UAC popup confirmation will appear. Ensure you select the option to always start Steam as administrator.

pause

echo Script completed successfully.
pause