Virtualization allows one operating system (OS) to run on another OS. But did you know that a virtual machine (VM) clone on your hard drive can put your entire computer in another computer? — With VM, the possibilities are endless. Still, virtualization lets most people play older games using emulation, sandboxing, multiple operating systems, and more. What is VMDK file? VMware Virtual Machine Disk File, in short, VMDK file, is a specification of the Virtual Machine (VM) file format. …