How to Reset Mac to Factory Settings - OS X Daily

Jun 11, 2019 MAC: How To Install OS X After Formatting Your Hard Drive Dec 08, 2016 Can't Reinstall OS X On Your Mac? Try Resetting The PRAM

Some new Mac users can’t reinstall Mountain Lion (and how

Mar 29, 2019

How to Recover Lost Data after Reinstalling OS X on Mac?

How to install macOS or OS X on a new hard drive for your Mac Sep 06, 2019 How to install a fresh copy of macOS on your Mac | iMore Oct 07, 2019 How to reinstall macOS if macOS Recovery is unavailable At this point, the Mac should start to download the recovery files from the internet and show a status bar. When complete, it should reinstall macOS Recovery and reinstall macOS on the main partition.