Q: I upgraded iTunes to 12.3 on windows 10, but iTunes won't recognize my iPhone ios 9. Anyone could help me fix this problem.

I 'd suggest you read http://https://support.apple.com/en-us/HT204095

"Webpage not available."

That link should have been iPhone, iPad, or iPod not recognized in iTunes for Windows - Apple Support.

tt2

I've done all of that as the link suggested. Still same problem.

I think that article is dated. The problem occurred in the past couple of days. iTunes was working with my phones 3 days ago as the activity log showed. I think the problem is with the last iTunes update.

There are numerous posts from people with the same problem.

Apple needs to fix the problem and release a newer version of iTunes.

Deleting the current driver and reinstalling it should work.

tt2

Same problem with iTunes 12.3.0 and iPhone 5s running the 8.1, and installing iOS 9 didn't fix the problem so I suspect the iTunes update does not like Windows 10!

I'd tried to reinstall the driver. It said my driver is of the latest version.

Do I delete the iPhone driver and then reinstall it? Please elaborate.

Yes, delete the driver and then install.

tt2

This does not work for me as the PC will prompt this is the latest driver. My PC is running Windows 10 with the latest update.

The PC will recognize my iPhone but not the iTunes.

I am using iTunes and iPhone 6 Plus with the latest update.

Appreciate your advise. Thanks!

Thank you kind sir, this fixed my problem.

Thank you! This finally helped me connect my iPhone 6 to the new iTunes!

To those who were unable to resolve this issue, please follow the steps suggested on this article.

Remove and reinstall iTunes and related software components for Windows Vista, Windows 7, or Windows 8 - Apple Support

Don't get confused if the article subject does not include Windows 10. This was created way back before when Vista was first launched but this is applicable to Windows Vista, Windows 7, Windows 8, Windows 8.1, and Windows 10 OS.

Please be reminded to read the article very clearly since the uninstallation of iTunes and its related components should be "in order". Failure to do so will lead to possible errors and/or issues.