Slow logoff from windows account is a common problem everybody encounters, right? When any software driver or application opens a registry handle but does not close it efficiently during logoff the registry gets stuck. You can get rid of this problem easily using User Profile Hive Cleanup Service (UPHClean) which ensures that the user sessions are completely terminated when a user logs off. UPHClean monitors the logged off users that still have registry hives loaded. UPHClean releases all open handles that are still left open by applications and drivers during logoff process.