In Smartware, there is no button to disable the password protection


Here is the problem, I’m trying to disable my own WD My passport 500 Gt hdd:s password protection. As I googled it, I found an answer that there is a disable / enable button on Smartware:s settings Page. I have opened the program, with the Hdd connected and went to the settings page, but there is no button to disable it.
My smartware programme and the hdd:s firmware are the latest versions. So I’m running out of choices what to do?

I’m trying to do this, to connect it to a Nas. From which I want to take an external backup. I can’t do that, as long as the password protection is enabled.

Please can you tell me what to do?

This is really weird.  Are you unable to see this options?:  Setting up security to lock or unlock a WD external drive with WD SmartWare