Installing system software
Your Macintosh came with all the necessary system software installed on its internal hard disk, so you don’t need to install system software on that disk unless you encounter software problems.
When should you install system software?
mYou have a new hard disk or a newly initialized hard disk that does not yet contain system software. Follow the instructions in “Performing a Normal or Easy Installation of System Software” later in this section.
mYou want to upgrade to a more recent version of system software. Follow the instructions that came with your system software upgrade, or the ones in “Performing a Normal or Easy Installation of System Software” later in this section.
IMPORTANT If you’re having a problem with your system software, you may not need to reinstall system software. If you see an icon like this in the middle of the screen, follow the instructions in “Testing and Repairing Your Hard Disk” earlier in this chapter to test your startup hard disk and repair any damage.
If repairing the disk doesn’t help, follow the instructions that follow to reinstall system software on your startup hard disk.
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