You can choose the Manual Launch with EC2 console by the pressing corresponding tab, or continue with the 1-Click Launch using predefined settings (the 1-Click Launch option does not allow you to modify the default storage size and type when creating the instance: 30 GB magnetic storage. To change disk storage after deployment, see the Amazon AWS documentation: Expanding the Storage Space of a Volume[http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-expand-volume.html]).