If you are not worried about security you can make Windows 7 login automatically using your chosen account even if the account is password protected.

• Start > type netplwiz and press Enter
  
  
• User Accounts window will appear
  
• Select user you want to use for automatic logon
• Uncheck “Users must enter a user name and password to use this computer“
• Press OK
• Enter your password if prompted

Next time you restart your computer Windows will login automatically using the account you selected.