What sets the Windows experience apart from any virtualization software is that users can take full advantage of their hardware in every possible way, the Retina display included, so long as you agree to allocate at least 40GB of space on the startup disk for this operating system. Apple's multi-boot utility – which has been included with the Mac operating system since OS X 10.5 Leopard – guides users through installing Windows on Intel-based Macs, and it's actually pretty easy to get started if all the necessary components are in place. There is another way to take the Windows experience to the next level: run it on a Mac using Boot Camp. Requires at least 40GB of allocated space.