How to add an XP Mode Virtual Machine to Windows 10 (or 8) using Hyper-V.If you wish to run different versions of Windows in Virtual Machines, then the following D3K articles are worth taking a look at: But if you just want to try the Sierra MacOS, then the ideal solution is to use a Mac OS X virtual machine. In order to use it, you either need to buy a Mac or build a hackintosh. MacOS Sierra is the latest version of Apple's operating system, which of course cannot be installed on just any computer.