apple 27 2011 os system
flashing? FOLDER on start up need to re install os system on my apple 27'' 2011 .....cant remember what operating system is running
ta piers
iMac 27″, OS X 10.10
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Click here and follow the instructions. If the computer was running Mac OS X 10.6.8 or earlier and you reach the third set of steps, insert a Mac OS X install disk; in this case, it won't respond to the Command and R startup command.
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