Yes.
In XP Pro, you can do this via the Group Policy Editor, GPEDIT.MSC.
Computer Configuration, Windows Settings, Security Settings, Local Policies,
Security Options, Interactive Logon: Do not display last user name
For XP Home, click Start, Run and enter REGEDIT Go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system
You may need to add the System subkey. Look in the right pane for a value
called dontdisplaylastusername If it exists, a setting of 0 (zero)
displays the last user name, a setting of 1 doesn't display the last user
name. Right click dontdisplaylastusername and select Modify to change it.
