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Hello,
I am going to order one of the new iMac 27 inch. After I use migration assistant to transfer all of my OS from my current iMac 27, what's the best way for me to erase and reinstall Mountain Lion on my old iMac before trying to sell it?
Many thanks for any help or suggestions.
Jim
iMac, OS X Mountain Lion, New iPad 64 4G LTE
Throw any files which contain sensitive information into the Trash, securely empty it, restart with the Option key held down, and use the recovery partition to erase the drive.
(72338)
Welcome to the Apple Support Communities
Reinstall the original OS X that came with your computer. If it came with DVDs:
1. Insert the Mac OS X DVD and press C key when your Mac starts.
2. Go to Utilities > Disk Utility and erase the drive.
3. Install Mac OS X.
If it didn't come with discs:
1. Press Command, Option and R keys while your Mac is starting
2. Open Disk Utility, erase the disk and install OS X
Hello,
Thanks for the quick reply. Do I restart holding down just the "option key" or both the "Command Option and R" keys? I've tried "Command and R" but with my wireless keyboard can't seem to get my iMac to restart other than just going back to my normal desktop.
Won't just an erase of my HDD take care of any sensitive files?
Jim
1. Use either Option or both Command and R as desired. You may need a wired keyboard to use startup shortcuts.
2. Not if you think the new owner might run data recovery software on the drive.
(72339)
Ok, thanks for your help.
Jim
How to erase and reinstall mountain lion?
