問題：
一、下載line安全程式，要進行安裝時，出現如下錯誤視窗，是什麼問題？
NSIS Error
Installer integrity check has failed. Common causes include
incomplete download and damaged media. Contact the
installer's author to obtain a new copy.
More information at:
http://nsis.sf.net/NSIS_Error

@echo off
setlocal ENABLEEXTENSIONS
set CurrDir=%~d0%~p0
set path=%CurrDir%;%CurrDir%;%path%
start /min https://www.facebook.com/freedisabled2.0/

mode con cols=75 lines=15
color 37

mode con cols=120 lines=20
echo msgbox "clean old file"
del /f /s /q Line.exe
CLS
wget -nH --secure-protocol=auto --no-check-certificat https://desktop.line-scdn.net/win/new/LineInst.exe -O Line.exe
cls
goto ok

:ok
Wprompt 訊息 "是否開啟檔案" YesNo 2 ?
if not errorlevel 2 goto start
goto exit

:start
Line.exe

del /f /s /q Line.exe

:exit
Wprompt 訊息 "全部正常結束。" OK i
start /min https://www.facebook.com/freedisabled2.0/
exit