You can change the password setting as in the user authentication menu. You can also create user and assign different privilege to suit your needs. After selecting an entry to add or modify, type in user name and password, toggle the user privilege and then update the changes
System Utility
System Restart 
Figure 4-29. The System Restart Menu
As mention earlier, you need to perform either a Cold Start or Warm Star to have the changes you made so that changes are really saved and keep in effect until you make change to them again.
Factory Reset 
Figure 4-30. The Factory Reset Menu
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