@willy10879 that is an update error but can also be a HDD error. You also want to try different USB ports and maybe even a different cable.
We do want to be careful so that you do not delete the files on your HDD, but you can try a recovery. To enter Recovery mode – Press and hold the power and media buttons for 15 seconds. The device reboots into Recovery mode (***content is not erased, allows for firmware reinstall***). This is a good option if you want to keep the content on your device, but reinstall the firmware. You may need additional software,. Check [https://www.youtube.com/watch?v=hSVzC_VZrBA|this video] and download the files [https://onedrive.live.com/?authkey=%21AOHchWcqzKTWJa0&id=96BBB207261AA1B5%21197&cid=96BBB207261AA1B5|from here]
If none of that works, you may have to consider replacing your HDD. Your Zune should come apart just like the Zune 80/120 [guide|1475]
All of this is a bit of a beast to work on. The drawback of working with legacy devices.