Step 1 of 10: Download and install VirtualBox
The first step in running Windows 10 as a virtual machine on your Mac is to get your hands on a virtualization product. Luckily that part doesn't have to cost you anything!
VirtualBox is a free download from here. Opt for the latest edition by clicking the ‘amd64’ link beside VirtualBox 5.0 for OS X Hosts in the VirtualBox binaries section at the top of the page. Once the disk image has downloaded, locate it on your Mac, mount it and double-click the VirtualBox.pkg file to install the application.
You’ll need 175MB of free space on your computer to accommodate it, in addition to the space required by Windows (up to 32GB). When the installation completes, launch VirtualBox from your Applications folder.
