How to Upgrade Mac System Software

Upgrading system software on your Macintosh computer changes the way certain programs and processes behave. System upgrades are used to fix bugs and errors that had previously been experienced. Upgrades are also used to introduce new...

Table of Contents

Upgrading Mac System Software With OS X 10.3 and Later
Upgrading Mac System Software With OS X 10.2.8 and Earlier
Upgrading Mac System Software With a Standalone Installer

Method 1 of 3:

Upgrading Mac System Software With OS X 10.3 and Later

Open the Apple menu.
Click the Software Update option.
Choose the upgrades you wish to install in the Software Update menu.
Click Install.
1. When using OS X 10.3, click "Check Now."
2. Versions of Mac OS X 10.5 and later have the ability to run software update checks automatically. These checks can run in the background. When a software upgrade is available, the computer will prompt you.