Updating zune library
Select your operation system and click "Download" under "Download Software Only." This link will download the latest version of Zune software that you will need to install to your computer. Launch the Zune software once you have the Zune connected to the computer.
Windows Update must be updated to run this program.With the Zune computer software, you can check for updates to firmware, as well as install and reinstall firmware to the Zune device.Reinstalling Zune firmware is easy to do and you do not have to pay for the firmware.For more information about how to reinstall the software for your Zune HD player, see Microsoft Knowledge base article 974593.There isn't enough available space on your computer's hard disk.