Updating your mac
To install the latest software updates on your Mac computer please follow these steps.Click on the Apple () menu in the upper left hand corner and then select the Software Update menu option.This will display a screen, as shown below, that displays all the updates that will be installed.
This makes sure you are notified of new updates as they occur in the event that there is a critical one that needs to be installed for the safety of your Mac.
Click on the Apple () menu in the upper left hand corner and then select the System Preferences menu option.
The System Preferences window should now open as shown in the image below.
In this screen you can configure some basic options as to how Software Update will work on your computer.
The Check Now button will allow you to instantly perform a search for new updates.