One of the questions that Mac users ask us from time to time is the one you have in the headline of this small tutorial in which we will see how simple it is unlock settings in System Preferences. And is that sometimes that simple can be the most difficult to understand, something that sometimes happens with Apple and the settings that allow us to perform on our Macs.
Surely this does not happen to the vast majority of users, as we all usually have a password set on the computer to "fiddle" with the system settings whenever and however we want. But What if it turns out that we don't have a password assigned to System Preferences?
Well, indeed, what will happen is that we cannot unlock the settings or rather, the system will prevent access to some of them with the padlock that comes out in the lower left corner (
) from the preferences windows. Apple itself informs users of this but it is always good to remember it; To make some changes on the Mac, you need a username and password from an administrator account, otherwise it will most likely not work and we will not be able to make changes.
This is an important and interesting security measure for everyone since it prevents access to system settings and Preferences. Normally all users use a password for this since it is configured at startup, but sometimes some users delete it and admin password cannot be blank.