My ipod won't sinc windows 10

In the App Store, up in the far right corner I think you can search for updates. That’s how you update apps on windows computers. (I rarely use my laptop anymore so always have a dozen or so to download)

If you have automatic updates turned on then it may update them in the background.

There may be some tips here

https://support.microsoft.com/en-us/help/4026259/microsoft-store-get-updates-for-apps-and-games

]Use iTunes to sync your iPhone, iPad, or iPod with your computer - Apple Support

Have you tried to update your iTunes? With windows 10 you’d do this by looking in the Microsoft App Store to see if there’s an update