Does Parallels Desktop come with Windows?
Parallels is a Virtual Machine
If you’ve never used Parallels or a similar product before, it helps to give a quick summary of what a virtual machine does. Virtual machines like Parallels Desktop allow people who have Macs to run other operating systems at the same time. So, if you’re running the Mac operating system, then you can also be running another operating system like Microsoft Windows, Linux, NetWare or Solaris simultaneously. Parallels Desktop accomplishes this through some fancy and very complex software which we won’t get into.
Answering the original question, Parallels Desktop does not actually come with Windows – you will have to purchase a copy of the Windows operating system on your own to install with the Parallels Desktop software. And the same is true for any other operating system you would like to run simultaneously with the Mac operating system.
The reasons for this should be clear – since Parallels Desktop allows people to run other operating systems as well, it wouldn’t make sense to just be limited to Windows. Also, Windows is not known to be bundled with other non Microsoft products.