title: How to enable IntelliSense for C++ in Visual Studio 2015
body: <p>I've just installed VS2015 for C++ development, however traditional hot keys like <code>ctrl+space</code> or <code>.</code> or <code>-&gt;</code> don't show the IntelliSense window.
  Somewhere on the web I found that I needed to open the IntelliSense Manager from the Tools menu. But that's not in my Tools window.</p>
  
  <p>In addition, I reviewed related items in my IDE settings and found a <code>Text Editor -&gt; C++ -&gt; Advanced - IntelliSense</code> section with a number of settings, including Disable IntelliSense, which is <code>True</code> in my setup. The problem is that all settings in this section are readonly (not editable).</p>
  
  <p>How do I fix the problem?</p>
  
  <p>VS2015.2, fresh install. No previous installation on this host.</p>