Hello msilvers50,
Apple Support Communities is a fantastic place for help with iTunes on your Windows 11 PC. From the description, it sounds as though iTunes freezes or becomes unresponsive when importing an audio file to your iTunes library.
To confirm, does this happen with all audio files, or one specific file? If this is happening with multiple files, you would want to try the steps recommended by Microsoft outlined in the following article.
Fix Problems with apps from Microsoft Store
While iTunes version 12.12.2.2 is the latest version, you may find the additional steps listed in the article helpful. If it leads to uninstalling iTunes, it is recommended to uninstall iTunes and all Apple related components. Those steps can be found in the article below, along with the steps to reinstall iTunes and software related components.
Remove and reinstall iTunes and related software components for Windows 7 and later
Let us know how that goes!