When you upload or download files onto iTunes, the application automatically creates backup files of your media, which can be helpful in the event that data is lost or deleted by accident. Over time, these file folders can become very heavy and drain the memory capacity of your computer.
The actual location of the backup folder varies by operating system, and this tutorial will show you how to locate your iTunes backup folder on a Windows or macOS computer.
Locate the iTunes Backup Files
iTunes Backup Folder on Mac
Mac users can find their backups by clicking their menu bar and entering ~/Library/Application Support/MobileSync/Backup/.
If you'd like to delete these files, head to iTunes > Preferences, and click Devices.
Choose the folder that you would like to delete. If you have several devices or backups, hover the mouse pointer over the backup to view more details.
Select Delete Backup, and then confirm to finalize deletion.
iTunes Backup Files on Windows
Windows 7, 8, or 10 users can find their iTunes backup by going to \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\.
Alternatively, you can locate your backup folder via your Search bar. To do this, launch your search feature and enter %appdata%. Then, press Enter.
Next, double-click on Apple Computer > MobileSync > Backup.
Once you've located your files, you can choose to delete them by simply moving the folder to your Trash.