Can I delete my iphone back up in itune?

Connect your iPhone to your computer like you normally do. In the backup information window you should see an option to Manage Backups. Tap on that. You should then see your previous backup. You can right click on it and delete the previous backup.

Before you create the new backup, ensure that you have unchecked encrypt backups and then check it again so that the system can ask you to enter the encrypted backup password (your new password). After that, begin the backup process like you have always done.

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Are you using a Windows PC with iTunes? If YES, then follow the instructions from this website ➔ How to Delete iPhone Backups in iTunes (Windows).

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