Install Sitecore Commerce 7.5, powered by Commerce Server and Commerce Server 11.1 software components on your system.
As a part of the install process, the system launches the Sitecore Commerce 7.5, powered by Commerce Server and Commerce Server 11.1 Configuration Wizard to configure Sitecore Commerce 7.5, powered by Commerce Server and Commerce Server 11.1 components and create the appropriate database resources. Specify the user account that runs Sitecore Commerce 7.5, powered by Commerce Server and Commerce Server 11.1 services, the location of the Administration database, and the service accounts for Staging.
At the Configuration Wizard: