how to turn off encrypted backup on itunes

See iTunes and encrypted backups here

http://support.apple.com/kb/HT4946

itunes does let me turn off encrypted back-ups and the article doesn't explain it either.

This page does not answer the question - it does not mention encrypted back ups.

porkchop_d_clown wrote:

...it does not mention encrypted back ups.

Not so...

From the supplied Link...

iTunes and encrypted backups

You can protect your backup with a passcode using the Encrypt Backup option in the Summary pane. Encrypting your backup will back up your Keychain. This way, email account passwords, Wi-Fi passwords, and passwords you enter into websites and some applications will be remembered when you transfer to a new device. Learn how tocreate and restore from a backup.

When your backup is encrypted, you'll need to enter the password when enabling or disabling encryption or when restoring from this backup.

Excuse me. It says nothing about how to turn off encrypted backups. Once the check box enabling encryption is turned on, it becomes grayed out, it does not let you uncheck the box.