title: How can I change default Python version on the cmd in Windows 10
body: <p>I have python <strong>v2.7</strong> and <strong>3.6</strong> on Windows 10. I installed 3.6 later and also chose the option <strong>"Add to PATH"</strong>. In the command line, when I type <code>python</code>, I get v3.6. I already tried to set PATH in <strong>View Advanced System Settings</strong>, but it doesn't work and python 3.6 is also no where to be found there. So when I want to set v2.7 as default (in order to run python script in the Atom Editor or the cmd), I have to reinstall v2.7 and ticked the <strong>"Add to PATH"</strong> option.</p>
  
  <p>How can I set my new default python version to use for example in a text editor or cmd... without having to reinstall it?</p>