LOGIN TO XP WITHOUT A PASSWORD

# The built-in Administrator account is hidden from Welcome Screen when a user account with Administrator privileges exists and enabled. In Windows XP Home Edition, you can login as built-in Administrator in Safe Mode only. For XP Professional, press CTRL + ALT + DEL twice at the Welcome Screen and input your Administrator password in the classic logon window that appears.

# To have the Administrator account displayed in the Welcome Screen, try this one:
START>RUN>REGEDIT>

• Navigate to the following key:

HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ SpecialAccounts \ UserList

• Remember to backup your registry by exporting it.
• You can export it by right clicking on folder in left pane of registry editor.
  
• Create a new DWORD Value named Administrator
• Double-click Administrator, and set 1 as its data
• You are done.