How to fix sync issue Between iPhone Pro and Apple Devices App on Windows says "the apple music library could not be opened"

I have this same issue on Windows 10. Something does seem to be stuck and continually trying to perform a task while failing and restarting another thread. The worst thing is it doesn't clean up after itself. If you kill Apple Devices, the MobileDeviceProcess child processes don't quit. In fact, I think every time I kill one another spawns in its place. This reminds me of the old Logic Bomb technique to freeze a computer with an unending spawn of child processes.

I should clarify that my iPhone 15 does correctly sync with my Windows 10 PC, but as others have pointed out, I can't see Music, Movies, TV Shows, Podcasts, Audio but I can see Files. Woah, what just happened, now I see everything but photos and music as they say I am using iCloud Photos and iCloud Music. How do I turn those off?

I ran into this problem as well after just buying an Iphone 15 pro with extra storage so I COULD have my old music library on my phone with 1000's of songs i've invested in over past 18 years. I bought this music long ago from CD's and got rid of the CD's because i downloaded it to my computer. Went back to the Apple Store and spoke with a manager and he said it's copyright issues and they removed access to any music that was imported from CD's as it could fall under the guise of bootlegging music ( even though you've purchased it). So disappointed with Apple right now and may return my phone to get smaller memory. They said only way to access my music is with a paid Apple subscription. If anyone know a way around this chime in!

I can open the Apple Music app and see my music library. I can play songs and I can add to the library (although you can no longer add an entire folder at once.) However, the Apple Devices app refuses to see that the library is there. I own a great many CDs and have every legal right to put this music on my IPhone and take it with me.

[Edited by Moderator]

Task manager*

Same here. I looked for the solution about the MD crash reporter, but that task was not running. Like others, openingthe Apple Music app didn't effect any change.

Same issue with Windows 11, iPhone 15 Pro Max, and a 4th gen (I think) iPod Touch.

That worked thanks. Ridiculous they have millions and millions of devices out there and haven't fixed this.

Sorry--what exactly worked for you? I've tried launching Music within the Devices app and the from the Taskbar but am still stuck with an error.

It doesn't work for me

What worked for you?

It appears they did an update. It’s working for me now. I had already had the apps installed. Wasn’t working as of last week but today the playlists show. 😃

It worked for me too! Thank you!