#To define a particular parameter, replace the 'parameterName' inside itsm.getParameter('parameterName') with that parameter's name

product_key = itsm.getParameter('ProductKey') ##Provide the product key like xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

import os
URL=r'https://onedrive.live.com/download?cid=C82947CDF16DE065&resid=C82947CDF16DE065%21160819&authkey=AOim4990zwAxNBk'
src_path=os.environ['TEMP']

import zipfile
import ctypes
import sys
import platform
import _winreg
import ssl
import shutil
ssl._create_default_https_context = ssl._create_unverified_context


class disable_file_system_redirection:
        _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
        _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
        def __enter__(self):
            self.old_value = ctypes.c_long()
            self.success = self._disable(ctypes.byref(self.old_value))
        def __exit__(self, type, value, traceback):
            if self.success:
                self._revert(self.old_value)

def Download(src_path, URL):
    import urllib2
    import os
    print "Download started"
    fileName = 'Windows10-1809.zip'
    fp = os.path.join(src_path, fileName)
    request = urllib2.Request(URL, headers={'User-Agent' : "Magic Browser"})
    parsed = urllib2.urlopen(request)
    if os.path.exists(src_path):
        print "Path already exists"
    if not os.path.exists(src_path):
        os.makedirs(src_path)
        print "Path created"
    with open(fp, 'wb') as f:
        while True:
            chunk=parsed.read(100*1000*1000)
            if chunk:
                f.write(chunk)
            else:
                break
    print "The file downloaded successfully in specified path"
    return fp

zip_path=Download(src_path, URL)
print zip_path
file_zip=os.environ['PROGRAMDATA']
file_zip1=file_zip+r'\Windows10-1809'

def filezip(zip_path,file_zip):
    with disable_file_system_redirection():
        with zipfile.ZipFile(zip_path,"r") as zip_ref:
            zip_ref.extractall(file_zip1)
            print 'file unzipped to ' +file_zip1

filezip(zip_path,file_zip1)

import ctypes
from subprocess import PIPE, Popen
def ecmd(path):
    class disable_file_system_redirection:
        _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
        _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
        def __enter__(self):
            self.old_value = ctypes.c_long()
            self.success = self._disable(ctypes.byref(self.old_value))
        def __exit__(self, type, value, traceback):
            if self.success:
                self._revert(self.old_value)

    with disable_file_system_redirection():
        command = path+' /auto upgrade /migratedrivers all /dynamicupdate enable /showoobe none /pkey '+product_key
        obj = Popen(command, shell = True, stdout = PIPE, stderr = PIPE)
    out, err = obj.communicate()
    ret=obj.returncode
    if ret==0:
        if out:
            return out.strip()
        else:
            return ret
    else:
        if err:
            return err.strip()
        else:
            return ret
setup_file = file_zip1 + r'\Win10_2004_English_x64\setup.exe'
print setup_file
if os.path.isfile(setup_file):
    print ecmd(setup_file)
else:
    print "Setup FIle not Found"