If you can get your Mac online you can try Internet Recovery, though this requires you to download a hefty chunk of data and takes time. The sequence is similar to the way you usually access Recovery, with the addition of the Option key. Restart your Mac and hold Option-Command-R when the start up chime chimes. Keep those keys depressed until you see a globe symbol and progress bar appear. Don’t stay there for hours, if this doesn’t happen within a few minutes it’s reasonable to assume it won’t work. A bootable driveĮvery Mac user should invest in a high-capacity USB 3.0 flash drive. On that drive they should create a bootable OS X installer drive for OS X. And put the drive in a draw while hoping they don’t need to see it again until they need to add another OS X installer version to that drive. Making it is a complex process – take it slowly and follow these clear instructions – however, it doing so is well worth the effort. Once you have your bootable drive follow these steps: See it as an insurance policy as you can use this installer to startup and repair (or at least rescue data) from a sick Mac. Restart the Mac and hold Option once the chime sings now attach your bootable installer drive to the Mac and select it from the list (if you see a list) that appears.
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