title: "conda" command returns "failed to start process" after updating Continuum Anaconda
body: <p>I had a working version of Anaconda 2.3 on my Windows 10 PC. (I use PowerShell as my preferred command line interface.)</p>
  
  <p>After updating to Anaconda 2.4, any command using <code>conda</code> or <code>anaconda</code> resulted in the message <code>failed to start process</code>.</p>
  
  <p>I tried and uninstalling, redownloading and reinstalling, and even tried reverting to 2.3. Nothing worked!</p>