Use a Mac OS X installation Disc If you’re unable to use Internet Recovery Mode or create a bootable USB installer, you can still use a Mac OS X installation disc. Just like that, macOS will begin installing. Choose the Macintosh HD you named earlier.
#HOW TO WIPE MAC CLEAN AND REINSTALL OS INSTALL#
You’ll be asked which hard drive you want to install to. If you booted from a USB disk, click “Continue” to advance to the installer. If you booted from a functioning recovery partition, click the “Reinstall macOS” button. How do I reinstall Mac OS from recovery partition? If you have a SSD using a USB installer, it typically takes 15 minutes or so. If you are using the internet recovery route, it can take over an hour, depending on speed of internet etc. Typically, if you have a stock 5400 rpm drive, it takes about 30 – 45 minutes using a USB installer.
To boot your Mac from a DVD-ROM installation disc, follow these steps: How do I do a clean install of macOS X from DVD? Click the Restore pop-up menu, then choose the volume you want to copy.In the Disk Utility app on your Mac, select the volume that you want to restore in the sidebar, then click the Restore button.Restore a disk image with a single volume to a disk Reinstall your current version of macOS: Command-R. Reinstall your computer’s original version of macOS (including available updates): Option-Shift-Command-R. Install the latest version of macOS compatible with your computer: Option-Command-R. In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions. Choose Apple menu > Shut Down, press and hold the power button until “Loading startup options” appears, select Options, click Continue, then follow the onscreen instructions. How can I reinstall OS X on a flash drive?.How do you reinstall Mac OS after Information Wipe?.How do I reinstall Mac OS from recovery partition?.How long does it take to reinstall OSX?.How do I reinstall OSX without Internet?.How do I do a clean install of macOS X from DVD?.How do I reinstall Mac from disk image?.