Apr 21, 2020

Mac: This Item Is Temporarily Unavailable. Please Try Jul 24, 2018 Can't Reinstall OS X On Your Mac? Try Resetting The PRAM Apr 15, 2014 How To Erase & Factory Reset A Mac & Reinstall macOS Sep 08, 2019

Install Mac OS offline [without internet] using bootable

Apr 15, 2014 · Continue to keep these buttons held until you hear the Mac startup chime twice. After the second chime, let go of the buttons and let your Mac restart as normal. No user data will be lost in this process. Resetting your PRAM will not only fix this particular OS X install issue, but it can also fix network issues, sound issues, and display issues. Sep 06, 2019 · 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. These discs are available for OS X Snow Leopard, OS X Lion, and OS X Mountain Lion. If your Mac is from 2012 or earlier, there was an installation disc in the original box.

first, you download OS X Recovery Disk Assistant v1.0 from apple, then create a recovery usb drive, then plug in the usb into your mac. when it power on, press option to select use the recovery disk you just made. you will found you can reinstall a OS x 10.10.

Mac: This Item Is Temporarily Unavailable. Please Try Jul 24, 2018 Can't Reinstall OS X On Your Mac? Try Resetting The PRAM Apr 15, 2014 How To Erase & Factory Reset A Mac & Reinstall macOS Sep 08, 2019