How to restore System Preferences's lock icon?
How to restore System Preferences's lock icon? My Mac's System Preferences's lock icon at the lower left corner disappeared, how to restore?
MacBook Pro, OS X Mavericks (10.9.5)
The solution is in this 5 Feb 2014 post by Dio Gratia:
"Go to the Security& Privacy System Preferences Pane, click the lock icon, authenticate and hit the Advanced button. Check the Require an adminstrator password to access system-wide preferences, hit Okay.
The lock icon will show up again on the Sharing Preference Pane. It should cure the missing lock icon in general."
See