VMware ESXi is the latest hypervisor architecture from VMware. It has an ultra-thin architecture with no reliance on a general-purpose OS, yet still offers all the same functionality and performance of VMware ESX. VMware ESXi sets a new bar for security and reliability because its smaller code base represents a smaller “attack surface” with less code to patch. This small footprint and hardware-like reliability also enable VMware ESXi to be built directly into industry standard x86 servers from leading server manufacturers such as Dell, IBM, HP, and Fujitsu-Siemens. VMware ESXi was designed with simplicity in mind. Its menu-driven startup and automatic configurations make it the easiest way to get started with VMware virtualization.