However, while the Disk Utility erases function does a good job of removing your files, it still relies on a hard disk that ultimately holds the files after deletion. There is no doubt that seeing all your data suddenly vanish from your grip completely can be worrying. Is it Possible to Undo Disk Utility Erase? Thankfully, the problem is very much solvable, and we will be sharing multiple methods that you can use to get the files back that you may have lost through the Disk Utility Erase process. There are countless cases of people losing their data through Disk Utility erase and then wondering how to recover data erased from disk utility. This is especially true for software like Disk Utility which can cause issues for some users when deleting data. After the installation process completes, your iMac will automatically reboot into OS X Mountain Lion.Updated to macOS Data Recovery Tips by William on | Approved by Daryl Baxterįor all its ease of use and functionality, Macintosh computers can turn out to be quite tricky to handle in some cases. For example, choose the hard drive you want to reinstall the operating system on and enter your Apple ID and password when prompted. The OS X Utilities window re-appears.Ĭhoose 'Reinstall OS X' and click 'Continue.' Follow the directions to reinstall OS X Mountain Lion. Open the 'Disk Utility' menu and choose 'Quit Disk Utility' after the system displays the message that the disk has been successfully erased. The time for the process to complete depends on the amount of data on the disk. Click the 'Erase' tab.Ĭlick the 'Format' pop-up list and select 'Mac OS Extended (Journaled).' Enter a name for the hard drive in the Name box and click 'Erase.' The system automatically erases the disk. If you only have one hard drive, it will be the only disk available.

If the system does not automatically connect to the Internet, select your wireless network from the Wi-Fi menu to establish a connection.Ĭhoose 'Disk Utility' from the list of options to open the Disk Utility window and click 'Continue.'Ĭhoose the hard drive you want to clear. Release the keys after the OS X Utilities window opens. Press the 'R' and 'Command' keys simultaneously and hold them when the system restarts.

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