Creating an account in the Zune software allows you to take full advantage of all of Zune's features. With an account in the Zune software you can:
To create your account, you'll need an Internet connection and an email address.
Create a new account in the Zune software
If you already have an account in the Zune software and want to create a new one, follow these instructions:
Create a second account in the Zune software
Now you're all set to get the most out of your Zune experience. Just be sure to sign in to the Zune software every time you launch it by clicking the Sign in link in the upper-right corner.