You can also use the completely free and open-source VirtualBox for Mac, but its 3D graphics support and Mac operating system integration aren’t as good. Each of these is a paid program, so you’ll have to buy both a Windows license and a copy of your virtual machine program of choice. Popular virtual machine programs for Mac include Parallels and VMware Fusion. RELATED: How to Seamlessly Run Windows Programs on Your Mac with Parallels
If you already have a product key, you can download Windows installation media for free and install it in a virtual machine program. You’ll need a Windows license to install Windows in a virtual machine. However, they’re still running inside the virtual machine in the background. You don’t have to use your Windows program in the virtual machine window, either-many virtual machine programs allow you to break Windows programs out of your virtual machine window so they can appear on your Mac desktop.