Thus, you can perform your tests in isolated virtual machines without any concerns of damaging your host operating system or other virtual machines. Virtual machines are isolated from each other and from the host operating system. An OS and applications installed inside a VM “think” that they are running on a regular physical machine since emulated hardware is used for running VMs on VirtualBox. A virtual machine (VM) works much like a physical one. One more VirtualBox advantage is that this product can be installed for free. VirtualBox is designed to run virtual machines on your physical machine without reinstalling your OS that is running on a physical machine. Oracle VirtualBox is what you need in this case, instead of reinstalling software on your physical machine. When using a traditional you need to install the operating system on a physical machine for evaluating software that cannot be installed on your current operating system. By Michael Bose How to Use VirtualBox: Quick Overview
