This article describes how to prevent the name of the last logged-on user from being displayed in the Log On to Windows dialog box.
By default, Windows displays the name of the last user who successfully logged on to the computer. This name is displayed in the Log On to Windows dialog box. Security administrators may prefer that the last logged-on user name not be displayed in the Log On to Windows dialog box. Although this configuration requires that users must type their user name (and password) each time that they log on, it can help to prevent attempts by unauthorized users to gain access to the computer.
You can use Group Policy to prevent the name of the lasted logged-on user from being displayed in the Log On to Windows dialog box. The group policy can apply to the local computer, sites, domains, and organizational units (OU).
Microsoft Windows NT 4.0-based computers do not support Windows Server 2003 Group Policy. For additional information about how to remove the last logged-on user name from the logon dialog box in Windows NT 4.0, click the article number below to view the article in the Microsoft Knowledge Base:
114463 Hiding the Last Logged On Username in the Logon Dialog
For more information about working with Group Policy in Windows Server 2003, see Group Policy Help. To do so, click Help on the Action menu in the Group Policy Object Editor snap-in, click the Contents tab, and then click Group Policy.