If your hard disk already has system software installed on it but there is a problem with the disk or the software, you may see this icon in the middle of the screen:

If this icon appears, first try testing your startup hard disk and repairing any damage. To do this, follow the instructions in “Repairing a Damaged Disk” in Chapter 6. If repairing the disk doesn’t help, follow the instructions in the next section.

When to use the Macintosh Performa CD: Performa Software

You reinstall your computer’s software by using the Macintosh Performa CD: Performa Software, a compact disc that came with your computer. You need to use the Macintosh Performa CD: Performa Software to reinstall the software if

myour computer will not start

ma file or an application program is missing or damaged

This chapter describes three ways to use the Macintosh Performa CD:

Performa Software:

mYou can reinstall (restore) just the system software—the files needed to run your computer—using the Restore System Software program.

mYou can reinstall (restore) all the software that came with your computer by using the Restore All Software program.

mYou can copy one or more individual files from the CD-ROM disc to your hard disk.

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Apple 6400 appendix When to use the Macintosh Performa CD Performa Software