title: How to make permission re-apply for a logged-in user in Windows AD without making him log in again
body: <p>I am remotely removing a user U from a Group G.
  But I have to log off and log on the user U to ensure that permissions for Group G do not apply any more to User U.</p>
  
  <p>This is on a Windows 2008 server.</p>
  
  <p>Is there a way to force the entire exercise of calculating permissions (which is done when a user logs in) while the user is logged in?</p>
  
  <p>Thanks in advance.</p>