Running continuously cmd line script commands after restart

Another way to start a process  is  "Scheduled Tasks" choosing the option "When my computer starts"

you can put this batch in the "scheduled tasks" and go
example of batch script

@echo off
if exist *.goto (
     for /f %%i in ('dir /w /b *.goto') do  goto :%%i
) else (
     echo For starting the job chain
     echo you need to create th file FASE1.goto
     echo EX:   echo. ^> FASE1.goto
)    


goto :end

rem ------------------------3 jobs parts--------------------
:FASE1.goto
  echo FASE 1
  Rem your code
 
  del *.goto
  echo. >FASE2.goto
  rem shutdown /r
goto :end
:FASE2.goto
  echo FASE 2
  Rem your code

  del *.goto
  echo. >FASE3.goto
  rem shutdown /r
goto :end
:FASE3.goto
  echo FASE 3
  Rem your code

  del *.goto
  rem ---- stop the execution chain -----
  echo. >END.goto
goto :end

:END.goto
  echo job chain finished!


:end

Thank you canali , but this way I'll be forced to add task scheduling to my unattended installation.
So far, solution of boris711 is most acceptable, which is  accually suggestion of dovcamp .

you should put the my batch:
in HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
The sample is divided in 3 phases but you can extend the script as you need
when phase3 is reached every time you reboot script starts but only print "job chain finished!"
for extend
:FASE3.goto
  echo FASE 3
  Rem appropriate part of script based on value to continue processes

  del *.goto
  echo. >step4.goto
goto :end
:step4.goto
 echo step4
  Rem appropriate part of script based on value to continue processes

  del *.goto
  echo. >end.goto
  rem echo.>end.goto -----------------stop the process
goto :end