Automatic Logon to Windows XP

[Start] [Run] [Regedit]
Registry Key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Modify/Create the Value Data Type(s) and Value Name(s) as detailed below.

Data Type: String Value // Value Name: DefaultUserName
Setting for Value Data: [Enter the account name to be automatically logged on]

Data Type: String Value // Value Name: DefaultPassword
Setting for Value Data: [Enter the account password]

Data Type: String Value // Value Name: AutoAdminLogon
Setting for Value Data: [0 = Disabled / 1 = Enabled]

Exit Registry and Reboot