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Disk drives and disks
The computer won’t start up from its hard disk, or the
hard disk icon doesn’t appear on the desktop.
n There may have been a temporary software problem. Shut
down the computer, wait at least 10 seconds, and then turn it
on again.
n There may be a problem with the system software on the hard
disk. Start up the computer with the Disk Tools disk. If the
hard disk’s icon appears, reinstall system software as
described in Chapter 6. Disk repair programs can sometimes
fix problems of this kind.
n The information on the disk drive may be damaged. Try using
a disk repair program to repair or recover the information. If
this doesn’t work, you’ll need to reinitialize the hard disk. See
Chapter 8.
n There may be a mechanical problem with the disk drive. If
none of the above suggestions works, take the computer to an
authorized Apple service provider.
The hard disk keeps stopping and starting again.
n The hard disk may be going to sleep to conserve power. Open
the PowerBook control panel and move the Battery
Conservation slider toward Maximum Performance.
The hard disk is full.
n You can reclaim space on your hard disk by removing
unneeded files; installing a smaller, customized System Folder;
turning off virtual memory; or purchasing a disk optimization
program to reorganize the information on the hard disk.
The icon of a floppy disk doesn’t appear on the screen.
n There may be a problem with the disk or disk drive. Try
inserting a different disk. If its icon does appear, the original
disk is probably damaged. You may be able to repair the disk
or recover some of the information on it. See Chapter 8. If the
icon of the second disk does not appear either, take the
computer or disk drive to an authorized Apple service
provider for repair.
266 Quick Reference