When creating a new VM I have no HDD option, further I can't add a HDD from the dropdown. I can create a VM but it is only 16Gb in size. I don't recall this as being one of the free license ...

VMware ESXi is an enterprise-class, type-1 hypervisor developed by VMware for deploying and serving virtual computers by integrating vital OS components, such as a kernel; since as a type-1 hypervisor ...