批处理关闭系统启动列表等待时间

关闭：
@echo off
if exist "C:\bak.txt" del /f /q /a "C:\bak.txt"
for /f "delims=" %%a in (C:\boot.ini) do (
set var=%%a
for /f "tokens=1* delims=:" %%i in ('call echo %%var%%^|find /i "timeout"') do set var=timeout=0
call echo %%var%%>>"C:\bak.txt"
)
if exist "C:\bak.txt" del /f /q /a "C:\boot.ini"
Ren "C:\bak.txt" "boot.ini"
Attrib "C:\boot.ini" +h +s +r
Exit

恢复：
@echo off
if exist "C:\bak.txt" del /f /q /a "C:\bak.txt"
for /f "delims=" %%a in (C:\boot.ini) do (
set var=%%a
for /f "tokens=1* delims=:" %%i in ('call echo %%var%%^|find /i "timeout"') do set var=timeout=30
call echo %%var%%>>"C:\bak.txt"
)
if exist "C:\bak.txt"