Select Recovery HD from the Startup Manager.įor detailed information on this update, please visit: About OS X Recovery Disk Assistant. To access OS X Recovery, reboot the computer while holding the Option key. When the OS X Recovery Disk Assistant completes, the new partition will not be visible in the Finder or Disk Utility. After a short while, the macOS Utilities window should appear.

Insert an external drive, launch the OS X Recovery Disk Assistant, select the drive where you would like to install, and follow the on screen instructions. Choose to boot up from your OS X installation disc. To create an external OS X Recovery, download the OS X Recovery Disk Assistant application. Note: In order to create an external OS X Recovery using the OS X Recovery Assistant, the Mac must have an existing Recovery HD. The OS X Recovery Disk Assistant lets you create OS X Recovery on an external drive that has all of the same capabilities as the built-in OS X Recovery: reinstall Lion or Mountain Lion, repair the disk using Disk Utility, restore from a Time Machine backup, or browse the web with Safari. OSX uses up 1 GB RAM nicely if you’re running several other tools, you might need 2 or 4 GB RAM, perhaps more. This will install the version of OS X you had installed. When you see the macOS Utilities window, continue to the next section to determine whether to erase your machines hard drive or begin installing macOS. Select Install OS X and click on the Continue button. Quit Disk Utility and return to the Utility Menu. Built right into OS X, OS X Recovery lets you repair disks or reinstall OS X without the need for a physical disc. Set the Format type to Mac OS Extended (Journaled.) Click on the Apply button, then wait for the Done button to activate and click on it.

Os x utilities macbook pro