title: Desktop Window Manager always uses high CPU
body: <p>My server has a problem about desktop window manager process in window server 2012 R2 64 bit. It always takes 10-20% CPU in anytime. This happened 2 week ago. Before that then, this process was normal. Please guide me how to troubleshoot or fix this.</p>
  
  <p>This is screenshot:</p>
  
  <p><a href="https://i.stack.imgur.com/cTADu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cTADu.png" alt="enter image description here"></a></p>