How to do a clean install of macOS Catalina | iMore Back up your Mac: This process will erase whichever OS you're currently using from your hard drive … How to Clean Install OS X El Capitan on a Mac Start and complete a backup with Time Machine before beginning. Alternatively, perform your own …

How to Completely Remove and Reinstall EN Mac - Evernote

How to reinstall macOS via Recovery Follow these steps to reinstall the latest version of macOS installed on your Mac: Start up your Mac while holding down Command+R until you hear the startup Restart your Mac. While the startup disc is waking up, hold down the Command+R keys simultaneously. Click on Reinstall macOS (or Reinstall OS X where applicable) to reinstall the operating system that came with your Mac.

Sep 13, 2018

Sep 13, 2018