What should I do if iTunes prompts error code -54 after installing Win 10 on Apple device?

  
If you find that your Apple device sync has problems after upgrading Win10, please don't worry. With a few clicks of your mouse, you can launch and run iTunes and sync your Apple device. This problem arises because Win10 sets iTunes' folder properties to read-only, which means your computer won't allow iTunes to sync your inserted devices. How to fix this -54 error, it is very simple.

Workaround:
1. Open Explorer
2. Open Music Folder
3. Right click on iTunes Folder
4. Open Properties
5. Tick ​​off the read-only option
Then a window will pop up prompting if you want to apply this change to all subfolders, choose OK. If the problem persists, make sure you have full control over iTunes. To do this, right click on the above folder again, properties, then safe, and finally click Edit, select Full Control and Apply. After these operations, you should be able to go back to iTunes and start syncing your device.
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