The best way to do this would be to create a Time Machine Backup.
This backup should include all the data on your computer including all photos, videos, music, documents and more. This is why it is very important to create a backup of the data on your Mac before you begin updating to macOS Sierra. Many of the problems most people encounter after a major upgrade, have to do with data loss. The following is how you can prepare the system to ensure a smooth, problem-free transition. Just like with every major update, there are things you need to do to get your system ready for a new upgrade. Part 1: How to Prepare Your Mac for macOS Sierra Part 3: Recover Lost Data after Upgrading to macOS Sierra.Part 1: How to Prepare Your Mac for macOS Sierra.If you don't know how, this article will provide you with everything you need to comfortably upgrade to the new Mac OS.
If these features seem attractive to you, it is about time you upgrade to macOS Sierra. For example, the new system allows users to Auto unlock, use Siri on desktop and even make use of Apple Pay for the first time. The new macOS Sierra has dropped the 'OS X' that was a premium feature of the title in all its predecessors and also comes with a lot of new features. It is that time again for Mac users to upgrade to a new operating system.