


Be forewarned: Starting up from the installation disc and erasing your hard drive for a clean install will make the entire installation process take longer.

Quit Disk Utility to return to the installer and proceed with your installation as outlined below. Then use Disk Utility (located in the Utilities menu in the menu bar after you’ve booted from the Install DVD) to select your hard drive and erase it. If you do perform a clean install, you’ll need to boot your computer using the Install DVD by restarting the computer while holding down the C key. Just find some time to go through your hard drive and clean it out. Given that it means copying files, erasing the disk, restoring and organizing your files, and resetting all of your preferences and system settings, a full-fledged clean installation it isn’t worth the hassle. Since most computers over time collect files that are no longer needed - anything from old to-do lists to applications you installed but never use - a clean install forces you to take a look at what’s on your computer and do some spring cleaning. The main advantage to a clean install is from a personal housekeeping perspective.
