Windows Registry Tips

This setting can be used to blank the username box on the logon screen. This will prevent people that are logging on from knowing the last user to access the system.

Open your registry and find the key for your Windows version below.

Windows 98 or Me
Open [HKEY_LOCAL_MACHINE\Network\Logon] and create new string value called "DontShowLastUser" and set it to "1" to hide the last user.

Windows 2000 or XP
Open [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System] and create a new string value, or modify the existing value, called "DontDisplayLastUserName" and set it to "1" to enable or "0" to disable the restriction.

Windows NT
Open [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] and create a new string value, or modify the existing value, called "DontDisplayLastUserName" and set it to "1" to enable or "0" to disable the restriction.

Restart Windows for the change to take effect.

Settings:
System Key: [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\
System]
Name: DontDisplayLastUserName
Type: REG_SZ (String Value)
Value: (1 = remove username, 0 = display username)