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- How to Perform a Clean Install of OS X Mountain Lion
- locked hard drive can't reinstall Lion OSX
- Step 1: Back up!
Processor 2. More Less. Question marked as Solved User profile for user: Kappy Kappy. Desktops Speciality level out of ten: The process you follow will require you boot from the Recovery HD: Boot to the Recovery HD: Install or Reinstall Mavericks or Mountain Lion from Scratch Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
I suggest using Ethernet if possible because it is three times faster than wireless.
View answer in context. Helpful answers Drop Down menu. Still getting error message "This disk is locked" when I try to reinstall Lion. Give your exact machine as methods differ and there are different types of locks.
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The lock discussed here sounds different from yours. A photo of the locked screen really helps.
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How to Perform a Clean Install of OS X Mountain Lion
View the answer I have this problem too Subscribed to new answers. Is this a good question? Yes No. Voted Undo. Score How do you do that if you don't mind me asking.
locked hard drive can't reinstall Lion OSX
I took the disk oft of the mac and installed it in an external disc-cabinet. Connected it to another mac, where I was able to recreate the partition. I had to hold Cmd-R when starting it, and use Applestore for installation. I'm happy it worked out! The All-New. The high performance electronics repair kit.
Most Helpful Newest Oldest. Chosen Solution. Waseem Rep: Was this answer helpful? I have same problem but "enable journaling" is also grey Dan danj Rep: Score 5. The system should eventually boot into the installer, where you first must choose a language. Do so, then choose Disk Utility from the Utilities menu. When you see the Apple logo, you can let go. This will start the computer in recovery mode. Once you have fully booted into recovery mode, open Disk Utility. Note that when you begin the install process, you will need to download about 4 GB of data, so be sure your internet connection can handle that before proceeding.
Step 1: Back up!
Once in Disk Utility, you need to select your hard drive in the list and select the Erase tab. This step is pretty simple — just follow the directions to reinstall the system on the newly-erased drive. Instead, when the installer finishes, import nothing, and go through the setup process as if this were your first computer. Once your system restarts successfully, you will need to be sure that it is fully up-to-date.
From the Apple menu, choose Software Update, and install any updates that show up. If you reinstalled Mac OS X Once your clean, new system is up and running and fully updated, work on getting all the settings back to the way you like them. At this point, you can manually copy your user data from the clone backup back into your new user folder. When it comes to restoring data for apps that are not document-centric, like iTunes, iPhoto or Mail, you need to find and copy the data from your backup to the same location on your new drive. For other apps, you may need to search for instructions on where to find the data and preference files.
At this point, you can start reinstalling any other applications you might have had installed. Do not try to copy them from your backup. Reinstall them from the original disks, or download them from the original source. Once you have completed the seventh step, you should have your machine back to a state pretty close to where it was before, though hopefully without the issues that caused you to go to all this trouble in the first place. Is it enough to choose Erase? Are the results of Erase command similar to Format option from Windows?
There is no need to zero out the drive. Erasing is sufficient, there is no malware that can survive that. Malware would have to somehow embed itself into the hardware such as in the firmware in order to survive a hard drive erasure.