these image files are in the dmg format and must be converted to either an iso file format or a vmdk file format to be used to install a virtual machine. to get the most updated copy of macos high sierra, you can head over to apple’s support website and download the image. grab your borrowed mac, head to the mac app store, search for sierra, and click. to start, we’ll need to create an iso file of macos high sierra’s installer, so we can load it in virtualbox on our windows machine. step one: create a macos high sierra iso file. Install macos high sierra 10 13 on virtualbox on windows pc download links.
