VirtualBox is powerful, brimming with terrific features and, best of all — free. It’s a lean piece of software requiring little more than a recent Intel or AMD processor, while boasting seamless integration and switching capabilities within the host desktop. It’s also available on all major platforms, and features plain-text XML files for easy navigation. It remains coupled with special software packages designed to aid users with sharing folders and drives among guest and host operating systems.
The software functions nearly identically regardless of the host platform, and even offers 3D virtualization, multi-screen resolutions, and laudable hardware support, among other features. It’s not the quickest or most industrious when compared to similar offerings, but then again, you often get what you pay for.
VMware (Free — $250)
VMware has been in the virtual machine game since ’98, and offers three differing pieces of virtualization software: VMware Workstation ($250), VMware Fusion ($80), and VMware Workstation Player (Free).
The Workstation package is ideal for professional users who desire a powerhouse virtual machine capable of simultaneously running applications on multiple guest operating systems. VMware’s Fusion, meanwhile, is a simpler application designed for home users who want to run Windows on their Mac machine. VMware Workstation Player, known until recently as VMware Player, is free for personal use, and caters to those looking to run virtual machines on their Windows or Linux systems.
None of the options are particularly simple to use, but the installation is quick, integration between operating systems is seamless, and the guest software runs at near native speeds. Best of all, they remain the most stable and reliable options out there.
Parallels Desktop 11 ($80)
When it comes to delivering the Windows experience to Mac users, Parallels Desktop 11 is, well, unparalleled. The latest incarnation of the software is compatible with OS X El Capitan, allowing you to emulate Windows XP, 7, 8, and 10 as a guest operating system. It allows you to conveniently run Mac and Windows applications side-by-side without rebooting, while additionally providing tools for quickly moving files between operating systems, launching programs directly from your Mac dock, and accessing cloud storage.
The software features a simple setup wizard for beginners, and moreover, it supports Retina displays and advanced 3D graphics. Parallels can also emulate the Linux and Solaris operating systems, but the tightest integration remains when coupled with Windows. Unfortunately, you’ll have to look elsewhere for more advanced tools and customization, but for most Mac users, Parallels is probably the best option.
The open-source QEMU, short for “Quick EMUlator,” is ideal for Linux power users who want a customizable virtual machine. Through a process involving dynamic binary translation, QEMU can emulate an array of hardware and software types, while skirting host administrative privileges to run guest operating systems.
The software executes the guest code directly on the host machine, thus attaining near-native performance — and given the software’s aforementioned ability to run without administrative privileges — it’s perfectly apt for creating pocket-sized virtual machines that conveniently fit on a portable flash drive. You’ll need to be comfortable with the Command Prompt to get this up and running, but the open-source nature of the project makes it one of the most regularly updated choices out there.
Boot Camp (Free)
Apple’s Boot Camp isn’t a virtual machine in any sense of the word, but it’s worth a mention given users researching virtual machines are often curious about it. The software, which is included on all Macs, allows users to dual boot both OS X and Windows. Instead of emulating an operating system, Boot Camp helps you set up a partition on the hard drive so you can install the Windows operating system of your choice. Since it’s running directly off the hard drive, running Windows via Boot Camp leads to a far better experience than any virtual machine offers.
However, your disk space will be split in half, and you’ll be unable to run Mac and Windows applications side-by-side considering the software requires disk partitioning. You’ll also need to restart your computer every time you want to switch operating systems.
It’s worth noting that, while Boot Camp itself is not a virtual machine, you can run your Boot Camp partition as a virtual machine with Parallels 11 (outlined above). This gives you quick access to Windows when you want it within OS X, and full performance when you’ve got enough time to restart your computer and boot up Windows directly.