In most cases, you'll be prompted to install
Zune the first time you connect your phone to your computer. If you aren't prompted, download the software from the Web and install it on your computer.
On your computer's web browser, go to the
Zune download page and click the download button.
Follow the instructions to download and install.
After you've finished installing the software, connect your phone to your computer using the supplied USB cable.
Zune automatically opens on your computer.
Zune to recognize your phone, and then follow the onscreen instructions to set it up.
Zune cannot be installed and used on a Mac. If you're using a Mac computer, you need to use Windows Phone 7 Connector for Mac to sync multimedia files between your phone and your computer and to download available phone updates. Go to the
Windows Phone 7 Connector for Mac download page