Using Software Update
Periodically, Apple releases important security updates for its software products. It is important to install these patches on a regular basis because they often fix issues that can expose your computer to hackers and other threats.
By default, Your Mac automatically checks for updates every week. When it does so, the following screen will appear:
Review the list of applicable updates. By default, updates will be unchecked if you don't own the applicable product. When finished, click the "Install" button. You will most likely be required to restart your computer after the updates are installed.
If you want to check for updates manually, or didn't have time to install the updates when the Software Update window appeared, use the following directions.
1. Select System Preferences from the Apple menu.
2. Select the Software Update item.
The following window will appear.
3. Click Check Now to automatically check for updates.
After the search, it will display a list of updates for you to install.
4. Check the applicable updates, and click Install.
If you need additional support with setting up Automatic Updates or securing your computer, the IT Helpdesk can assist. Call x3830 or send e-mail to firstname.lastname@example.org.