title: Installing Teamcity build agent as a user: failed to install the service. selected account does not have enough rights
body: <p>I want to install a TeamCity BuildAgend as a user. When entering my user credentials here: </p>
  
  <p><img src="https://i.stack.imgur.com/U83Bb.jpg" alt="enter image description here"></p>
  
  <p>I always get this error:</p>
  
  <p><img src="https://i.stack.imgur.com/qhbOb.jpg" alt="enter image description here"></p>
  
  <p><strong>NOTE: My account (user) is Administrator with full permission!</strong></p>
  
  <p>How can I do this?</p>