The desktop doesn't have a Windows log in, you just push enter on the username without a password and it goes through.

Not sure what more I can do!

Remote desktop requires your Windows user account to have a password or it doesn't let you remote connect.

(hint: you can create more than one account in Windows some with and some without passwords)

Otherwise anyone connecting to your router could access your home machine.

Which is probably not a good idea.

rgds