Apple Mac mini (Mid 2011) - Manual (Page 53)

53 Chapter 4 Problem, Meet Solution
 Restore your computer to its factory settings by erasing its disk and reinstalling
Mac OS X Lion and your Apple applications.
If your computer detects a problem, it opens the Mac OS X Utilities application
automatically. You can also open it manually by restarting your computer.
To open the Mac OS X Utilities application:
m Restart your computer while holding down the Command key (x) and R key.
Important: If the Mac OS X Utilities application doesn’t appear after restarting, hold
down Command (x)-Option-R and restart the computer to access the Mac OS X
Utilities software from the Internet. Your computer must be connected to a network
that has access to the Internet.
Some utilities in the Mac OS X Utilities pane require access to the Internet and the Mac
App Store. You may need to make sure your computer is connected to the Internet via
your Ethernet or Wi-Fi network.
To connect via a Wi-Fi network:
1 Choose a network from the Wi-Fi status menu in the upper-right corner of the screen.
2 If necessary, type the network password.
To join a closed network, choose Join Other Network. Enter the network’s name and
password.