Hide Username at Logon prompt - Windows XP

Just copy the following code in red color, paste it in a notepad & save it as anyname but the extension must be .reg

and in place of Username type your username (the username you are using to logon to windows XP) thats all ..

After that just double click on the file ....

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList]
"Username"=dword:00000000
(Read more inside ..)