1. Download Setuptools and pip

You can download pip from github Setuptools from bitbucket
And confirm this aren’t harmful.

1. Open Console

As an Admin, just open console in the download folder. And run,

python ez_setup.py
python get-pip.py

1. Additional Recommend

New Binaries pip.exe and easy_install.exe will be find in the"%ProgramFiles%\PythonXX\Scripts" folder (vice versa)

Another way to installing pip on windows

1. Download & Extract

Download pip version 1.2.1 from official pip site. After download just extract that.

1. Change the Directory and Run

Change the directory to extracted folder. like,
cd <path to extracted folder>/pip-1.2.1

and Run with following code,
python setup.py install