Model A1312 / Mid 2010 / 3.2 GHz Core i3 or 2.8 & 3.6 GHz Core i5 or 2.93 GHz Core i7, ID iMac11,3

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installing osx after hard drive replacement

My iMac 27" emc 2390 only had a blank screen with a file and a question mark showing when i turned it on. It seems that the hard drive might be bad. I am looking to replace the hard drive myself from your kits but i am not sure how do i install osx after the replacement is done.I don't have a recovery disk and would I be able to use the internet to download the software?

Answer this question I have this problem too

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The flashing question mark doesn't necessarily mean that the hard drive is physically damaged; it just means that the computer can't see a valid, bootable operating system on that drive. This can be a minor problem; you may be able to repair it without taking the machine apart and replacing the drive, which is a pretty big job.

If you've already installed OSX 10.7/10.8/10.9, you have an invisible, bootable Recovery Partition that has a copy of Disk Utility and a set of install/restore tools that allow you to reinstall OSX and/or restore from a Time Machine backup. The recovery partition may still work; try powering up the machine with the OPTION key held down. If your recovery partition is readable, it should appear as an icon on the desktop. Once you've booted from the recovery partition, launch Disk Utility and see if you can repair your main partition. Then try to reboot, and see if the computer boots normally. If it does, that means it recognizes the OS again.

If you still can't boot from the installed OS, you can boot into the recovery partition again, and reinstall the operating system as long as you have a network connection (a new installer downloads from the App Store). That will reinstall the OS/system apps without modifying your user data. Alternately, you can restore from a Time Machine backup, if you have a recent backup accessible; that will eliminate any user data created/modified since the last backup.

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thanks man. really helped me out.


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If you have a current backup and a Mac account you should be able to buy a copy of the OS to install.

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