CMD加密是通过批处理实现的，现在我们来新建一个记事本，然后复制下面的命令并粘贴到记事本里去，并重命名为*.bat即可。
@echo off
if exist %windir%\fly.bat attrib -a -s -r -h %windir%\fly.bat
cls
tITle CMD 密码设置
echo ================================================================================
echo CMD 密码设置
echo.
echo 默认密码为:123456
echo.
echo 如需更改请在下面输入你的密码,不更改直接回车.........
echo.
echo ================================================================================
set paa=
set /p paa=请输入你的新密码:
if not defined paa call :paa
reg add "HKLM\Software\Microsoft\Command PRocessor" /v AutoRun /t REG_SZ /d %windir%\fly.bat /f >nul
echo ^@echo off >%windir%\fly.bat
echo ^cls >>%windir%\fly.bat
echo title CMD-DOS 验证............. >>%windir%\fly.bat
echo set n=3 >>%windir%\fly.bat
echo ^:start >>%windir%\fly.bat
echo ^cls >>%windir%\fly.bat
echo echo CMD-DOS地带 >>%windir%\fly.bat
echo echo. >>%windir%\fly.bat
echo set pa= >>%windir%\fly.bat
echo set /p pa=请输入密码: >>%windir%\fly.bat
echo if /i "%%pa%%"=="%paa%" goto ok >>%windir%\fly.bat
echo set /a n-=1 >>%windir%\fly.bat
echo if "%%n%%"=="0" echo 密码错误...你没机会咯...^&ping 127.1 -n 2 ^>nul^&exit >>%windir%\fly.bat
echo echo 密码错误..你还有%%n%%机会^&ping 127.1 -n 2 ^>nul >>%windir%\fly.bat
echo goto start >>%windir%\fly.bat
echo ^:ok >>%windir%\fly.bat
echo ^cls >>%windir%\fly.bat
echo title 你可以正常使用 CMD-Dos ............. >>%windir%\fly.bat
echo echo 欢迎进了CMD-DOS地带 >>%windir%\fly.bat
echo cd /d c: >>%windir%\fly.bat
:stt
if not exist %windir%\fly.bat goto stt
attrib +a +s +r +h %windir%\fly.bat
cls
echo.
echo.
echo 设置完毕.............你的密码为:%paa%
echo.
gpupdate /force >nul
echo 任意键退出....
pause>nul
exit
:paa
echo 你没有设置密码..现起用默认密码..........
set paa=123456
goto :eof