How to Boot to Disk Utility

By K.C. Winslow

Disk Utility is the program included in the OS X operating system that allows you to perform repairs and first aid on disks connected to a computer. However, disk utility cannot repair the disk on which it is located. To repair the startup disk of the computer, you must boot up into Disk Utility using the Mac OS X Install DVD that came with the computer.

Things You'll Need

  • Mac OS X Install DVD

Step 1

Insert the Install DVD in the computer.

Step 2

Click the power button on the computer and press "Restart." Press the "C" key on the keyboard right away and keep it held down.

Step 3

When the language selection window opens, release the key and select your language.

Step 4

Open the "Utilities" menu and select "Disk Utility." If you are using OS X 10.3 or earlier, open the "Installer" menu and select "Open Disk Utility." Disk Utility opens and you can repair any hard disk attached to the computer.