Q: non sync

Hi overstocks,

Thanks for visiting Apple Support Communities.

I recommend going through the troubleshooting steps in this article if your iPod is not recognized by iTunes for Windows:

iPod: Appears in Windows but not in iTunes

http://support.apple.com/kb/ts1363

If your iPod is recognized but does not sync, you can also use the steps in this article as a guide for further troubleshooting:

iOS: Troubleshooting USB-related alerts when syncing

http://support.apple.com/kb/TS5254

Best,

Jeremy