I can't sync my iphone 10 with my Itune music from window computer. And my MacNook too. I tried many times.

Hello Cow2021,

We understand you're looking to sync music to your iPhone, and we'd like to get you pointed towards a resolution. Get started here: Sync your iPhone, iPad, or iPod using your computer

This article will get you to steps for iTunes and Finder. If you'd like to transfer your entire library continue with the steps found here: Back up and restore your iTunes library on your PC

Take care!

Cow2021,

To help us understand this issue more, can you share the exact behavior you experience when attempting to sync content to your iPhone? More details may help facilitate more directed answers regarding the issue you're seeing. For example:

• What is your current iOS version?
• If you see an alert or error what is the exact text?

Cheers.