title: conda not recognized in Anaconda Prompt after deactivating environment
body: <p>Not sure if this is a bug, but if anyone has a suspected way to fix this issue, I would be eternally grateful.</p>
  
  <h1>Description</h1>
  
  <p>After activating an environment in the Anaconda Prompt, when I deactivate I seem to lose all conda-related information. In other words, it returns me to a normal Windows command prompt. (No Python, no conda commands, etc.) This is rather annoying because it means I need to open another Anaconda Prompt and navigate back to the folder where I was working.</p>
  
  <h1>Steps to reproduce:</h1>
  
  <ol>
  <li>Create a python environment with Anaconda Prompt  </li>
  <li>Activate it  </li>
  <li>Deactivate it  </li>
  <li>Try conda list</li>
  </ol>
  
  <p>I just had 30 new users install Anaconda with Python 3.6 earlier this week, all on Windows, and they all experienced this issue. I have Miniconda, they have Anaconda.  </p>
  
  <h1>Config info</h1>
  
  <p>platform : win-64<br>
  conda version : 4.3.25<br>
  python version : 3.6.1.final.0</p>
  
  <p>EDIT: forgot to mention that I submitted a <a href="https://github.com/ContinuumIO/anaconda-issues/issues/6060" rel="nofollow noreferrer">bug report</a> just in case this was a bug. No responses at the moment.</p>