Question
I tried to sync my iPhone XR using iTunes on a Windows 10 PC. I am getting a surprising notification that “the iPhone could not be synced because the sync session failed to start”, I have tried resolving this iTunes issue by troubleshooting my PC and iTunes several times, I have also contacted Microsoft and Apple supports but their tips did not help me much. Please, how can I fix sync sessions failed to start? – Jerry Cook

Jerry Cook is facing what so many of other users meet. And to begin with, we will talk about the reasons behind this error.

Sync sessions failed to start

How to Fix “iTunes Sync Session Failed to Start”

The following are some of the common reasons why iTunes sync session fails to start:

  • Faulty or incomplete iTunes installation and iTunes related component installation.
  • Corrupt iTunes software or iTunes library.
  • Outdated iTunes and component software.
  • Faulty or fake iOS lightning (USB) cable.
  • You haven’t setup iTunes sync option.

Mostly, incompletion of installation or related component mistaken occupy the majority reasons which caused the sync error. More so, the following tips will help you to fix this error when syncing your iOS devices with iTunes.

Method 1. An Effective iTunes Problem Solver - iMyFone TunesFix

iMyFone TunesFix is professionally aimed to fix iTunes sync problems, especially the above main reasons. With user-friendly operation design you can repair the iTunes library just by one click. This latest software repairs the iTunes sync issue without data loss and enables you to sync your device immediately.

iMyfone TunesFix can scan iTunes problems for free, and detailed steps to fix "iTunes sync session failed to start" are listed below:

Step 1.Launch TunesFix on your PC. It will show you the specific status of your iTunes, click “Repair Backup/Restore Errors” to repair iTunes.

Fix Other iTunes Problems

Step 2.Try using iTunes to sync your iOS device, if the “iTunes sync session failed to start” issue persists, then proceed to level two by clicking “Fix Other iTunes Problems”.

fix other itunes problems

Step 3.Click “Repair” to start the process.

click repair

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Why You Choose TunesFix to Help You

  • Fix “iTunes sync session failed to start” with just one click.
  • It can identify problems automatically for your iTunes, just like a professional iTunes online "doctor".
  • Super easy to use and don't need to master iTunes technical knowledge for you.
  • Fix more than 100 iTunes issues and errors, any subsequent problems with iTunes can be solved as well.

Windows version    Mac version

Method 2. Fix by Updating iTunes

“iTunes sync session failed to start” error may be stemming from outdated iTunes and iTunes component software. To update iTunes to its latest version follow these steps:

How do I update iTunes on my Mac?

  • Step 1: Open the App Store on your Mac.
  • Step 2: Click Updates at the top of the App Store window. If any iTunes updates are available, click Install.

update itunes on mac

How do I update iTunes on my Windows PC?

  • Step 1: Connect your PC to a network. Launch iTunes and go to “Help > Check for Update”.
  • Step 2: Follow the prompts to update your iTunes.

update itunes on pc

Method 3. Fix by Deleting Old iTunes Backups

It is better for you to delete your iTunes library to stop “iTunes sync session failed to start” error message from popping up.

How do I delete old iTunes backups on my Mac?

  • Step 1: Choose iTunes > Preferences.
  • Step 2: Click Devices.
  • Step 3: Select the backup you want to delete, you can hover your cursor on the backup to see more details.
  • Step 4: Click Delete Backup, then Confirm.

delete backup on mac

How do I delete old iTunes backups on my Windows PC?

  • Step 1: Choose Edit > Preferences.
  • Step 2: Click Devices.
  • Step 3: Select the backup you want to delete, you can hover your cursor on the backup to see more details.
  • Step 4: Click Delete Backup, then Confirm.

delete backup on pc

Tips

If you don’t want to manually delete the old iTunes backup, iMyfone Tunesfix can one-click clean up the junky. With two clean mode options to choose you can deeply clean up your iTunes.

Tunesfix clean up mode

Conclusion

iTunes is a great tool for managing iOS device contents. But when iTunes errors start surfacing, which usually comes with a lot of pain. You’ll probably meet the following painful iTunes sync, installation, uninstallation, update, restore problems and other issues when working with iTunes, just like the "iTunes Sync Session Failed to Start" error we talked about in the article. The best way to fix these errors is to download and install an all-inclusive iTunes repairer software – iMyFone TunesFix. This software would help you to fix all iTunes errors just in a click.

Windows version    Mac version