O detalhe é que tinha que passar o caminho completo para onde estava o django-admin, sendo assim o meu comando foi;
>python C:\Users\Carlos\Anaconda3\Scripts\django-admin.py startproject connectedin
Mas ai apareceu o erro abaixo...
Traceback (most recent call last):
File "C:\Users\Carlos\Anaconda3\Scripts\django-admin.py", line 5, in <module>
management.execute_from_command_line()
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\core\management\__init__.py", line 385, in execute_from_command_line
utility.execute()
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\core\management\__init__.py", line 354, in execute
django.setup()
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\__init__.py", line 18, in setup
from django.utils.log import configure_logging
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\utils\log.py", line 13, in <module>
from django.views.debug import ExceptionReporter, get_exception_reporter_filter
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\views\debug.py", line 10, in <module>
from django.http import (HttpResponse, HttpResponseServerError,
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\http\__init__.py", line 4, in <module>
from django.http.response import (
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\http\response.py", line 13, in <module>
from django.core.serializers.json import DjangoJSONEncoder
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\core\serializers\__init__.py", line 23, in <module>
from django.core.serializers.base import SerializerDoesNotExist
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\core\serializers\base.py", line 6, in <module>
from django.db import models
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\db\models\__init__.py", line 6, in <module>
from django.db.models.query import Q, QuerySet, Prefetch # NOQA
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\db\models\query.py", line 13, in <module>
from django.db.models.fields import AutoField, Empty
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\db\models\fields\__init__.py", line 18, in <module>
from django import forms
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\forms\__init__.py", line 6, in <module>
from django.forms.fields import * # NOQA
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\forms\fields.py", line 18, in <module>
from django.forms.utils import from_current_timezone, to_current_timezone
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\forms\utils.py", line 15, in <module>
from django.utils.html import format_html, format_html_join, escape
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\utils\html.py", line 16, in <module>
from .html_parser import HTMLParser, HTMLParseError
File "C:\Users\Carlos\Anaconda3\lib\site-packages\django\utils\html_parser.py", line 12, in <module>
HTMLParseError = _html_parser.HTMLParseError
AttributeError: module 'html.parser' has no attribute 'HTMLParseError'
A titulo de curiosidade, fica aqui um link mostrando com retirar um aplicativo padrão no windows
http://www.howtogeek.com/171932/how-do-you-remove-a-default-file-association-in-windows-7/