You can also find it at online stores like Amazon and Newegg. This isn’t carried by most brick-and-mortar retailers, but speciality computer retailers might have it. Since the retail version is gone, you’ll instead have to buy an OEM copy. Owners who have Windows 7 can follow the steps in this guide, install that version of Windows, and then install Windows 8 Upgrade. The upgrade version will work if you’ve already installed Windows on your Mac with a valid key. You’ll only be able to purchase upgrade versions, and, since those require you have a previous Windows installation, they won’t work with Boot Camp. Want to walk down to the local electronics store and buy a fresh install? Too bad! You’ll find none on their shelves. Windows 8 is the first version of Microsoft’s operating system to lack a retail copy. But don’t worry the steps are still doable for even the newest Mac owner. Changes to the way Microsoft sells its new operating system, along with a lack of support from the current version of Boot Camp, makes installation slightly more harrowing. Unfortunately, it’s also a bit harder to install that than Windows 7. If you own a Mac, and you want to use Windows, purchasing Windows 8 is likely the best option. Though Windows 8 has received mixed reviews, it remains Microsoft’s latest operating system.