Apple Mac mini (Intel-based; Mid 2007) - Manual (Page 32)

32 Chapter 3 Problem, Meet Solution
Reinstalling the Software That Came with Your Computer
Use the software installation discs that came with your computer to reinstall Mac OS X
and the applications that came with your computer.
Important: Apple recommends that you back up the data on your hard disk before
restoring software. Apple is not responsible for any lost data.
Installing Mac OS X
To install Mac OS X:
1 Back up your important files, if possible.
2 Insert the Mac OS X Install Disc 1.
3 Double-click “Install Mac OS X and Bundled Software.”
4 Follow the onscreen instructions.
5 Select the destination disk for installation and continue following the onscreen
instructions.
Your Mac mini may restart and ask you to insert the next Mac OS X install disc.
Important: Choosing the “Erase and Install” option erases the entire contents of your
destination disk. You should back up your important files before installing Mac OS X.