script to rename Built-in Administrator account

rename = "john" # give here the name 

​

import ctypes

from subprocess import PIPE, Popen

def ecmd(command):

    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():

        obj = Popen(command, shell = True, stdout = PIPE, stderr = PIPE)

    out, err = obj.communicate()

    ret=obj.returncode

    if ret==0:

        if out:

            print("Successfully renamed the Built-in Administrator account")

            print(out.strip())

        else:

            print(ret)

    else:

        if err:

            print(err.strip())

        else:

            print(ret)

ecmd('wmic useraccount where name="Administrator" rename "%s"'%(rename))