This way is only working if you have created Security Questions previously.
This link below is how to set up Security Questions.
1. Please go to this login interface and tick the ‘?’ option.
2. You will see these are two Security Questions like the picture below shows.
And please input the Answers and then tick OK.
3. Then the system will automatically pop up this interface like the picture below shows. You can input the new password that you want to set up.
4. Then, there is a message shows Modify Password Successfully.