A. For security reasons it may be desirable to stop the last logon name logged on being display so to stop perform the following:

  1. Start the registry editor (Regedit.exe)
  2. Move to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
  3. Double click DontDisplayLastUserName
  4. Set to 1 and click OK
  5. Close the registry editor

This can also be done using the policy editor, and is under the Windows NT System - Logon tree, and tick "do not display last logged on username".

Under Windows 2000 dontdisplaylastusername has been moved to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system.

To assign using a Group Policy Object set under the Computer Configuration - Windows Settings - Security Settings - Local Policies - Security Options - Do not display last user name in logon screen