Hello, I am currently running Windows 10 Pro 64 bit insider edition build 16184. It is a legitimate installation by dint of my taking part in the Windows beta program, but I don't have any installation disks because I have been using the online Windows 10 updates from Microsoft. I am hoping to take delivery of a new Apple Mac machine, tomorrow, and I will purchase and download Parallels. My question is: can I somehow install Windows 10 under Parallels without having to purchase it afresh?