If you are not a Mac computer user, how to recover iTunes backup password without Keychain after forgot? This video will give you an answer. Or turn to here to get more information about this answer, http://www.isunshare.com/itunes-password-genius.html

In this video, an effective tool is used to recover iTunes backup password. That is iSunshare iTunes Password Genius.

First, get it by searching in Google, and then install and run it on computer.

Second, add iTunes backup file into iTunes Password Genius.

It is worth noting that, iTunes Password Genius could help you find iTunes backup in computer automatically, after you click "Open" button.

Third, set password attack type and recover iTunes backup password.

Choose one appropriate password attack type from "Type of attack" drop-down box. There is always one type that is suitable to your forgotten iTunes backup password. And then make detailed settings for attack type.

At last, click "Start" button to let iTunes backup password recovery program run.