To use Software Update:
1. Connect to the Internet.
2. Open the Software Update control panel.
3. Click Update Now.
The computer will check to see if there are any updates available. If there are updates you will be prompted to install them.
You can also set Software Update to check for updates automatically. If you are not connected to the Internet when the software update is scheduled, it will check the next time you connect.
If a particular update requires that the computer be restarted, you will be prompted to do that, too.
The Software Update control panel does not check for software that is not installed on your computer. It cannot check for updates for another computer, either.