VMware vSphere Essentials Kit delivers the industry-leading virtualization platform for small businesses at an affordable price. Small businesses can virtualize their physical servers and centrally manage these servers, reducing hardware costs and increasing operating efficiency with a low upfront investment. The vSphere Essentials Kit consists of the following: vSphere Hypervisor (ESXi) vCenter Server Essentials

Download the software from https://customerconnect.vmware.com/downloads/info/slug/datacenter_cloud_infrastructure/vmware_vsphere/8_0. Login to your root. Go to Manage -> License Enter the key.