Installing Drupal Commerce
There are two ways to install Drupal Commerce. You can do it from scratch by installing Drupal 7 and then enabling the Commerce modules and their dependencies. This process requires additional configuration of products and product displays before you can start selling through your site. However, it does afford you a greater measure of control over how exactly items are setup from the beginning.
An easier way to install Drupal Commerce would be to use an installation profile that enables and configures the Commerce modules and components for you. The primary starter installation profile is Commerce Kickstart, but a major goal for the project is to see additional installation profiles tailor the initial configuration toward specific markets and business models.
Refer to the section below for your preferred method of installation.