What is a virtual machine?Ī virtual machine (VM) is a computer that’s created in software and looks and feels just like a real PC. If you want to run Windows and macOS side by side, you’ll need to create a Windows virtual machine for Mac. While that method means running Windows natively and so is optimal in terms of performance, it means you have to reboot every time you want to move between operating systems, and you can’t, for example, copy and paste between macOS and Windows. You can then boot into whichever operating system you choose. One is to partition your main drive using the built-in Bootcamp Assistant and then install Windows on the partition that doesn’t house macOS. If you want to run Windows on your Mac, there are two ways to do it.