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Apple Imac Mid2011 User Guide

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51
Chapter 4      Problem, Meet Solution
Use	the	Mac	OS	X	Utilities	application	to:
	
ÂRestore	your	software	and	data	from	a	 Time	Machine	backup.
	
ÂReinstall	Mac	OS	X	and	Apple	applications.
	
ÂRestore	your	computer	to	its	factory	settings	by	erasing	its	disk	and	reinstalling		
Mac	OS	X	and	your	Apple	applications.
	
ÂRepair	your	computer’s	disk	using	Disk	Utility.
If	your	computer	detects	a	problem, 	it	opens	the	Mac	OS	X	Utilities	application	
automatically. 	You	can	also	open	the	application...

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52Chapter 4      Problem, Meet Solution
To open the Mac OS X Utilities application:
	
mRestart	your	computer	while	holding	down	the	Command	(x)	and	R	keys.
Some	utilities	in	the	Mac	OS	X	Utilities	application	require	access	to	the	Internet	and	
the	Mac	App	Store. 	You	may	need	to	make	sure	your	computer	is	connected	to	the	
Internet	by	using	your	Ethernet	or	 Wi-Fi	network.	
To connect by using a Wi-Fi network:
1  Choose	a	network	from	the	 Wi-Fi	status	menu	in	the	upper-right	corner	of	the	screen.
2  If...

Page 53

53
Chapter 4      Problem, Meet Solution
Restoring Information Using a Time Machine Backup
You	can	use	the	Restore	utility	to	restore	everything	on	your	computer	to	its	previous	
state	if	you	have	a	 Time	Machine	backup.
Use	your	 Time	Machine	backup	to	restore	information	only	to	the	computer	that	was	
the	source	of	the	backup. 	If	you	want	to	transfer	information	to	a	new	computer, 	use	
Migration	Assistant	(in	the	Utilities	folder	in	Launchpad).
1  If	your	backup	is	on	a	 Time	Capsule,	make	sure...

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54Chapter 4      Problem, Meet Solution
You	can	install	Mac	OS	X	without	erasing	the	disk, 	which	saves	your	existing	files	
and	settings, 	or	you	can	erase	the	disk	first, 	which	erases	all	your	data	and	leaves	the	
computer	ready	for	you	to	reinstall	Mac	OS	X	and	Apple	applications.
After	reinstalling	Mac	OS	X, 	you	can	re-download	the	Apple	applications	that	came	
with	your	iMac	and	other	apps	you	purchased	from	the	Mac	App	Store. 	You	can	restore	
your	other	data	and	applications	from	a	 Time	Machine...

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Chapter 4      Problem, Meet Solution
7 To	reinstall	Mac	OS	X	and	your	applications, 	follow	the	instructions	in	the		
Mac	OS	X	Installer.
After	reinstalling	Mac	OS	X, 	you	can	re-download	the	Apple	applications	that	came	
with	your	iMac	and	other	apps	you	purchased	from	the	Mac	App	Store. 	You	can	restore	
your	other	data	and	applications	from	a	 Time	Machine	or	other	backup.
Checking for a Hardware Problem
If	you	suspect	a	hardware	problem,	use	the	Apple	Hardware	Test	application	to	help	
determine...

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56Chapter 4      Problem, Meet Solution
Important:  If	the	Apple	Hardware	 Test	window	doesn’t	appear	after	restarting, 	hold	
down	the	Command	(x), 	Option,	and	D	keys	and	restart	the	computer	to	access	the	
Apple	Hardware	 Test	software	from	the	Internet. 	Your	computer	must	be	connected	to	
a	network	that	has	access	to	the	Internet. 	
Replacing the Batteries
Your	Apple	Wireless	Keyboard	and	Apple	Magic	Mouse	each	come	with	two	
AA	batteries	installed. 	You	can	replace	them	with	alkaline, 	lithium,	or...

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57
Chapter 4      Problem, Meet Solution
To replace the batteries in the Apple Wireless Keyboard: 
1  Press	the	power	button	(®)	to	turn	off 	your	keyboard.
2  Use	a	coin	to	remove	the	battery	compartment	cover.
Battery compartment cover
3 Slide	two	AA	batteries	into	the	battery	compartment, 	as	shown	below.	
Insert batteries
4 Replace	the	battery	compartment	cover.
To	check	the	battery	status, 	press	the	power	button	(®). 	If	the	indicator	light	doesn’t	
glow, 	you	may	need	to	change	the	batteries. 	You...

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58Chapter 4      Problem, Meet Solution
To replace the batteries in the Apple Magic Mouse: 
1  Slide	the	on/off 	switch	on	the	bottom	of	your	mouse	to	turn	it	off.
2  Slide	the	latch	down	and	remove	the	battery	cover.
LatchBatteries
3 Insert	the	batteries	with	the	positive	ends	(+)	facing	up, 	as	shown	above.
4  Replace	the	cover	and	turn	on	your	mouse.
You	may	have	to	click	your	Apple	Magic	Mouse	once	to	reconnect	it	to	your	iMac.
To	check	the	battery	status, 	slide	the	on/off	switch	to	turn	on	the...

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Chapter 4      Problem, Meet Solution
If	you	have	trouble	with	your	Internet	connection, 	you	can	try	the	steps	in	this	section	
for	your	type	of	connection	or	you	can	use	Network	Diagnostics .
To use Network Diagnostics:
1  Choose	Apple	()	>	System	Preferences.
2  Click	Network	and	then	click	 “Assist	me.”	
3  Click	Diagnostics	to	open	Network	Diagnostics.
4  Follow	the	onscreen	instructions.
If	Network	Diagnostics	can’t	resolve	the	problem, 	there	may	be	a	problem	with	the	
Internet	service...

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60Chapter 4      Problem, Meet Solution
PPPoE Connections 
If	you	are	unable	to	connect	to	your	ISP	using	PPPoE	(Point	to	Point	Protocol	over	
Ethernet),	make	sure	you	entered	the	correct	information	in	Network	preferences. 	
To enter PPPoE settings:
1  Choose	Apple	()	>	System	Preferences.
2  Click	Network.
3  Click	Add	(+)	at	the	bottom	of	the	network	connection	services	list, 	and	choose	PPPoE	
from	the	Interface	pop-up	menu.
4  Choose	an	interface	for	the	PPPoE	service	from	the	Ethernet	pop-up	menu....
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