Special key combinations
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Special key combinations
If difficulties with your mouse or computer do not allow you to use
standard methods of quitting a program or restarting your
computer, you can try using these special key combinations.
Here are other key combinations you may find useful to use while
starting up your computer:
* If you do not have a debugging program installed, your screen
displays a caret prompt (>). To return to the desktop, type “G.”
To do this...
…press this key combination
Force a program to quit
Z
-Option-Esc
Force the computer to restart
Z
–Control–Power key
Start a “debugging program used by
software programmers*”
Z
–Power key
To do the following at startup…
…press this key combination
Reset PRAM
Z
-Option-p-r
Start the computer from a CD-ROM
disc
C key
Ignore the selected startup disk and
find another
Z
-Option-Shift-Delete
Turn off system extensions
Shift key
Start the Extensions Manager
Spacebar
Rebuild the desktop
Option-
Z