There’s already an easy way to get Windows 10 on your Mac. But a new Parallels update is making it even easier to get Microsoft’s software up and running on your Apple machine. Why would you even want to do that? Cortana is a pretty good reason.

In case you’ve never used Parallels, the program allows Mac users to run Windows apps alongside OS X apps. Easy—and convenient. With something like Bootcamp, you can only boot into one OS at any given time, meaning you aren’t able run a Windows-specific app while you’re trying to work on a Pages document.

What you’ll need before you even get started is a paid or trial version of Parallels 11; anything below the latest update won’t work for Windows 10. A paid one-time fee runs for $80, or you can upgrade your older version for $50; a free trial is good for 14 days. You can get the Windows 10 ISO file from Microsoft here.

You’ll also need to be running OS X Lion or later, and have a minimum of 2GB of RAM. Additionally, you should reserve about 20GB of disk space for Parallels and Windows 10.

After downloading the Windows 10 ISO file, choose “Install Windows or another OS from a DVD or image file.” Hit continue and choose image file, then drag and drop the Windows 10 ISO file from your downloads folder to the Parallels app.

If you don’t have a product key, uncheck “This version requires a product key” and hit continue. Keep clicking continue until the Windows 10 setup starts. The process takes a while because it’s essentially installing an actual OS on top of your current OS, so give it some time.

Once you’re all set up, Parallels will automatically enable a Coherence mode, which essentially allows you to run Windows applications on your Mac as if they were native Mac apps. This is what allows us to use Cortana.

You should know Cortana’s capabilities by now. Sort of a mix between Siri and Google Now, Microsoft’s personal assistant is capable of answering questions, proactively providing information, and more. Check out the video above to see her in action, along with detailed instruction on how to get Windows 10 on your Mac using Parallels.