You can install ESXi interactively, with a scripted installation, or with vSphere Auto Deploy. Installing ESXi InteractivelyUse the interactive installation option for small deployments of fewer than five hosts. Installing or Upgrading Hosts by Using a ScriptYou can quickly deploy ESXi hosts by using scripted, unattended installations or upgrades. Scripted installations or upgrades provide an efficient way to deploy multiple hosts. PXE Booting the ESXi Installer You can use the preboot execution environment (PXE) to boot a host. Starting with vSphere 6.0, you can PXE boot the ESXi installer from a network interface on hosts with legacy BIOS or using UEFI. Installing ESXi Using vSphere Auto DeployvSphere Auto Deploy lets you provision hundreds of physical hosts with ESXi software. Troubleshooting vSphere Auto DeployThe vSphere Auto Deploy troubleshooting topics offer solutions for situations when provisioning hosts with vSphere Auto Deploy does not work as expected. Parent topic: Installing and Setting Up ESXi