Quick Answer: How to Reinstall Mac Os X Sierra?

It is the easiest way to install a fresh copy of an operating system.

• Connect your Mac to the internet via Wi-Fi or Ethernet.
• Click on the Apple icon in the upper left corner of your screen.
• Select Restart from the drop-down menu.
• Hold down Command and R (⌘ + R) at the same time.
• Click on Reinstall a new copy of macOS.

How do I do a clean install of Mac OS X Sierra?

So, let us begin.

1. Step 1: Clean up your Mac.
2. Step 2: Back up your data.
3. Step 3: Clean Install macOS Sierra on your startup disk.
4. Step 1: Erase your non-startup drive.
5. Step 2: Download the macOS Sierra Installer from the Mac App Store.
6. Step 3: Start the Installation of macOS Sierra on the Non-startup drive.

How do I completely reinstall Mac OS X?

How to reinstall MacOS via Recovery

• Start up your Mac while holding down Command+R until you hear the startup chime and see either a spinning globe or Apple logo.
• A macOS Utilities window will open, on which you will see the options to Restore From Time Machine Backup, Reinstall macOS, Get Help Online and Disk Utility.