Recommended: NOOBS – Raspberry Pi documentation

You have several ways of installing the Raspbian operating system for the Raspberry Pi computers, but the simplest is to use NOOBS (New Out Of Box Software). This page shows you how to download and install the Raspbian operating system using NOOBS.

The Raspberry Pi Foundatiton. NOOBS – Raspberry Pi documentation. Available at https://www.raspberrypi.org/documentation/installation/noobs.md.