Zune sync updating
If Windows Update is disabled, you must manually install Windows Update.
To do this, go to Microsoft Knowledge Base article 949104.
This will open a new window that shows you the syncing status including how many items were added, updated or deleted.
Click on the "Start Sync" button that is located under the Zune image to upload the songs.
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.
INSTALLATION FAILED Setup must stop because the required package 'Zune' didn't install. Verify that the specified log file location exists and that you can write to it.
Error Code: 0x80070656 In Windows 7 or Windows Vista: Click Start, type C:\Program Files\Zune in the Start Search box, and then press Enter on your keyboard.
For more information about how to restore your Zune device software, see Microsoft Knowledge base article 927001.
To run Disk Cleanup: Would you like to contact Support regarding the "You can’t update or install the Zune software on your PC, or you can’t update the Zune player software" issue you were reading about or a different issue?
The Zune is Microsoft's portable audio device that is designed to compete with Apple's i Pod.
System updates required Zune software installation can't continue until you've installed one or more required updates.
Windows Update must be updated to run this program.