@echo off
setlocal EnableExtensions EnableDelayedExpansion

title Performancify Network Tweaks
color 0F
cls

set "NICROOT=HKLM\SYSTEM\CurrentControlSet\Control\Class\{4d36e972-e325-11ce-bfc1-08002be10318}"
set "LOG=%~dp0Performancify_Network_Log.txt"

for /f %%T in ('powershell -NoProfile -Command "Get-Date -Format yyyyMMdd_HHmmss"') do set "STAMP=%%T"
set "BACKUP=%~dp0Performancify_NIC_Backup_%STAMP%.reg"

echo.
echo ==================================================
echo          Performancify Network Tweaks
echo ==================================================
echo.
echo Applying cleaner network performance settings...
echo.

net session >nul 2>&1
if not "%errorlevel%"=="0" (
    echo [ERROR] Please run this file as Administrator.
    echo.
    pause
    exit /b
)

echo [+] Creating registry backup...
reg export "%NICROOT%" "%BACKUP%" /y >> "%LOG%" 2>&1

if exist "%BACKUP%" (
    echo [OK] Backup saved:
    echo %BACKUP%
) else (
    echo [WARNING] Backup could not be created.
)

echo.
echo [+] Creating Windows restore point...
powershell -NoProfile -ExecutionPolicy Bypass -Command "try { Checkpoint-Computer -Description 'Performancify Network Tweaks' -RestorePointType 'MODIFY_SETTINGS' | Out-Null } catch {}" >> "%LOG%" 2>&1

echo.
echo [+] Optimizing network adapters...
echo.

for /f "tokens=*" %%K in ('reg query "%NICROOT%" /s 2^>nul ^| findstr /r "\\[0-9][0-9][0-9][0-9]$"') do (
    reg query "%%K" /v "DriverDesc" >nul 2>&1
    if "!errorlevel!"=="0" (
        echo ------------------------------------------
        for /f "tokens=2,*" %%A in ('reg query "%%K" /v "DriverDesc" 2^>nul ^| findstr /i "DriverDesc"') do echo Adapter: %%B

        call :SetSz "%%K" "*DeviceSleepOnDisconnect" "0"
        call :SetSz "%%K" "*EEE" "0"
        call :SetSz "%%K" "AdvancedEEE" "0"
        call :SetSz "%%K" "EEELinkAdvertisement" "0"
        call :SetSz "%%K" "EnableGreenEthernet" "0"
        call :SetSz "%%K" "GigaLite" "0"
        call :SetSz "%%K" "PowerSavingMode" "0"
        call :SetSz "%%K" "ReduceSpeedOnPowerDown" "0"
        call :SetSz "%%K" "AutoDisableGigabit" "0"

        call :SetSz "%%K" "*WakeOnMagicPacket" "0"
        call :SetSz "%%K" "*WakeOnPattern" "0"
        call :SetSz "%%K" "*ModernStandbyWoLMagicPacket" "0"
        call :SetSz "%%K" "WakeOnLink" "0"
        call :SetSz "%%K" "WakeOnMagicPacketFromS5" "0"
        call :SetSz "%%K" "WakeOnSlot" "0"
        call :SetSz "%%K" "EnablePME" "0"

        call :SetSz "%%K" "WaitAutoNegComplete" "0"
        call :SetSz "%%K" "WolShutdownLinkSpeed" "2"

        call :SetSz "%%K" "*InterruptModeration" "0"
        call :SetSz "%%K" "InterruptModeration" "0"
        call :SetSz "%%K" "*FlowControl" "0"
        call :SetSz "%%K" "FlowControl" "0"

        call :SetSz "%%K" "*RSS" "1"
        call :SetSz "%%K" "RSS" "1"
        call :SetSz "%%K" "ReceiveSideScaling" "1"

        call :SetDword "%%K" "PNPCapabilities" "24"
    )
)

echo.
echo [+] Disabling old NetBIOS over TCP/IP...
for /f "tokens=*" %%I in ('reg query "HKLM\SYSTEM\CurrentControlSet\Services\NetBT\Parameters\Interfaces" 2^>nul ^| findstr /i "Tcpip_"') do (
    reg add "%%I" /v "NetbiosOptions" /t REG_DWORD /d 2 /f >> "%LOG%" 2>&1
    echo [OK] NetBIOS disabled on interface
)

echo.
echo [+] Applying Windows TCP settings...
netsh int tcp set global rss=enabled >> "%LOG%" 2>&1
netsh int tcp set global autotuninglevel=normal >> "%LOG%" 2>&1
netsh int tcp set global ecncapability=disabled >> "%LOG%" 2>&1
netsh int tcp set global timestamps=disabled >> "%LOG%" 2>&1

echo.
echo [+] Disabling PCIe link power saving...
powercfg /setacvalueindex SCHEME_CURRENT SUB_PCIEXPRESS ASPM 0 >nul 2>&1
powercfg /setactive SCHEME_CURRENT >nul 2>&1

echo.
echo [+] Flushing DNS cache...
ipconfig /flushdns >nul 2>&1

echo.
echo ==================================================
echo        Performancify Tweaks Finished
echo ==================================================
echo.
echo Restart your PC for all changes to fully apply.
echo Backup file:
echo %BACKUP%
echo.
pause
exit /b


:SetSz
reg query "%~1" /v "%~2" >nul 2>&1
if "%errorlevel%"=="0" (
    reg add "%~1" /v "%~2" /t REG_SZ /d "%~3" /f >> "%LOG%" 2>&1
    echo [OK] %~2 = %~3
)
exit /b


:SetDword
reg query "%~1" /v "%~2" >nul 2>&1
if "%errorlevel%"=="0" (
    reg add "%~1" /v "%~2" /t REG_DWORD /d "%~3" /f >> "%LOG%" 2>&1
    echo [OK] %~2 = %~3
)
exit /b