I forget my back up password in itunes

Hello Rezavajdi,

Thank you for using Apple Support Communities.

For more information, take a look at:

iOS: Troubleshooting encrypted backups

http://support.apple.com/kb/TS5162?viewlocale=en_US

You can keep trying to restore the device from backup until you remember the password. If you're having trouble, try:

• Leaving the password field blank
• Your Apple ID password
• Your computer account password, if you have one
• Email passwords you may have used
• Your Wi-Fi network password
• Website passwords you may have used
• A password for hard-disk encryption software, if you use it

Have a nice day,

Mario