title: either SET and SETX do not set the value of %PATH%
body: <p>I'm executing the following command</p>
  
  <pre><code>SETX PATH "very_very_long_list";
  </code></pre>
  
  <p>after closing and opening comand line, <code>echo %path%</code> outputs the old value. What I'm doing wrong?</p>
  
  <p>Thank you in advance!</p>