title: Where's my memory! all ram gone under Windows Server 2016
body: <p>I'm checking a server that has 32gb of ram and I see 99% memory usage.</p>
  
  <p>The machine is used with IIS, MongoDB and ElasticSearch.</p>
  
  <p>None of the processes seemed to be that big. The largest was MongoDB at about 1gb.</p>
  
  <p>So, I shut down everything.. and now that memory usage is 88%</p>
  
  <p>After a reboot, with all services running, the memory usage is 23%</p>
  
  <p><a href="https://i.stack.imgur.com/6P4L0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6P4L0.png" alt="88% memory usage without large processes"></a></p>
  
  <p><a href="https://i.stack.imgur.com/z0GfH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/z0GfH.png" alt="Largest processes"></a></p>
  
  <p>Those are the largest processes on the system, with everything being shutdown. As you can see, everything is very small, but most of the ram remains gone.</p>
  
  <p>How can I track what is eating up all the ram? I tried process explorer, but it doesn't give me any more useful info.</p>