Apple 640 manual Checking for damage on your internal hard disk

Checking for damage on your internal hard disk

You can check for damage on your internal hard disk with the Internal HD Format program, which is on the Macintosh Performa CD that came with your computer. You can use Internal HD Format at any time to check for damaged blocks (segments of the hard disk that cannot reliably be used to store information).

1Start up your computer from the Macintosh Performa CD.

See “Starting Up From a CD-ROM Disc” earlier in this section.

2Click the Internal HD Format button in the Launcher.

3Choose Scan For Defects from the Functions menu.

If the program finds damaged blocks, it marks them so that the computer will not store information on them. This process does not harm any information on the hard disk.

Troubleshooting in the Macintosh Environment 99