There are several ways to initiate a Client login after users have already logged in to a server or to the local workstation:
Right-click the Client Tray icon () in the notification area of the taskbar, then click.
In the Network folder, double-click the desired tree or server.
In the Network folder, right-click the desired tree or server, then click.
Run loginw32.exe from the command prompt.
This file is located in the C:\Windows\System32 folder.
Include loginw32.exe in the Windows startup folder.
This causes the Client Login to run automatically at workstation startup and shows the Login screen when Windows first opens.