How to disable settings security password?

[Zenex999]

I accidentally enabled the password under security in settings menu and it seems that there automatically exists a password which I never created. Now The settings menu will not open unless the password is typed. There are no alternative options for password recovery. How can I disable it? The phone is Sony Xperia Z (C6602)
NOTE THAT I HAVE NO ISSUES UNLOCKING THE PHONE LOCK SCREEN.

 

[webworkings]

Please see the following thread in regard to passwords.... http://www.tomsguide.com/forum/id-2311806/read-passwords-lock-codes-pin-numbers.html