You may need to reinstall iTunes if you're having trouble transferring audiobooks to an Apple device using OverDrive for Mac. It may help resolve issues like this iTunes error: 0x800706BA.

Uninstall iTunes

Follow the instructions on Apple's support website to uninstall iTunes.

• OS X: El Capitan
• OS X: Yosemite
• OS X: Mavericks

Reinstall iTunes

1. Download iTunes.
   • After the download is complete, double-click the installation file.
   • Follow the steps to complete the installation.
   • When installation is complete, click Finish.
2. Launch iTunes to complete the reinstall.