How to Update Mac to 10.12 ?

The Mac OS 10.12, also called Mac Sierra, is the thirteenth release of Mac OS.
The beta version was first released in September 2016. The OS is named after the Sierra Nevada Mountain range located in California and Nevada.
The Sierra Os features updates such as iCloud, Apple Pay, and Siri. The latest version of the software came in September 2019, five months ago.
To update Mac to 10.12, you must first check if your Mac is compatible with the 10.12 update.

Here are some devices that are compatible with the Sierra update.

Backup

Before upgrading or installing any new OS on your Mac, it is always advised to make a backup.
The time machine backup that comes in-built with the Mac makes it simple in terms of time-consuming.
Use an external hard drive and connect it to your Mac.
Run the time machine and choose the drive as the destination for the backup.
You can see further steps on how to take a backup of your data from the link provided above.

Connect your Mac to a power source since it would take an ample amount of your time to download and install the software.
Make sure your Mac is connected to a high-speed internet because the download time can be a little faster.

You can download the Sierra OS or 10.12. You can download the newest version from the Apple support website.
Search for Sierra OS and click OK.
The New version will be downloaded to your Mac.
Double click on the downloaded file, and it will open the window showing the new updates available for the 10.12 version.

Follow the on-screen commands to start installing 10.12 into your Mac.
Once the installation is complete, open the applications folder on your Mac.
Locate the file named Install Mac OS Sierra.
Allow the Mac device to complete the installation.
Once the installation completes, read the progress bar and restart your Mac. Your Mac will open with the 10.12 Sierra OS update.
To Update Mac to 10.12, contact our technical team by clicking the call button displayed on this screen.