All that needs to be done to configure Windows 7 for automatic logon is the following:
Press Windows R. A command box should appear. Type control userpasswords2 and hit the enter key. This should display the User Accounts screen in Windows 7. Select the user account in the main table and uncheck the “Users must enter a user name and password to use this computer. A click on the Apply button will open the Automatically Log On window. Enter the password and confirm it to add the password to the system so that it does not need to be entered during logon.