Viewing duplicate tracks in my Library in Apple Music (Windows)

Did you perhaps install Apple TV first? Again that message will be shown if you have installed any of Apple Music, Apple TV, or Apple Devices. Doing so generates that warning and hides the music, movies, and TV shows sections of the library from you (the data is still there), along with device management features. If you uninstall whichever are installed then iTunes should open normally. You should be able to select music from the media selection tool once more. I've done this dozens of times before finally committing a spare machine to running Apple Music all the time just so that I can more easily prove to myself that various features that people complain are missing really are missing and not just hidden in some fashion.

I have the current build of iTunes, 12.13.6.1, installed on both Windows 10 and 11. Apple may wish to push people to the new Music app, but it is such a poor product when compared to iTunes that I recommend you vote with mouse and stick to an app that works.

Should you need to reinstall iTunes the current build can always be found at this link:

• https://www.apple.com/itunes/download/win64

tt2

When you install any of Apple Music, Apple TV, or Apple Devices for Windows, iTunes becomes altered so that it only manages audiobooks and podcasts. The new apps omit many useful features of iTunes, such as the ability to manage duplicates, rip CDs, import or export playlists, etc. Simply remove which of this set of three apps you have installed to restore functionality to iTunes.

See Duplicate songs in iTunes - Apple Community for advice on cleaning duplicates.

tt2

As far as I am aware you only see that message in iTunes after you have installed one of the newer apps. Removing them all restores features to iTunes, including the ability to manage devices.

If the device still doesn't show up try iOS device not showing in iTunes for Windows - Apple Community.

tt2