When users search for "portable," they usually mean one of two things:
The steps below cover creating the Portable Installer, which is what most users need. esxi 70 download iso portable
Congratulations – you now have a portable ESXi 7.0 installation. When users search for "portable," they usually mean
If you are searching for an "ESXi 70 portable ISO," you are likely looking for a lightweight version of VMware’s hypervisor that you can run from a USB stick or test without installing it to a hard drive. The steps below cover creating the Portable Installer
Let’s clear this up immediately: ESXi is not an application. You cannot run it from a Windows desktop like VirtualBox or VMware Workstation. ESXi is a Type-1 hypervisor—a bare-metal operating system. When you boot the ISO, you must install it onto a physical disk (or RAM disk) or run it as a VM inside another hypervisor (Nested Virtualization).
However, you can make it "portable" in the sense of booting from a USB drive for testing.