Select Display in the left panel, assign all physical memory to this mac os virtual machine’s Video Memory in the right panel Screen tab.In System -> Processor tab, select the processor number that you assign to the mac os virtual machine.In the macOS Settings window, click the System item in the left panel, then in the right panel click Motherboard tab -> Boot Order list, uncheck Floppy checkbox.Select the newly created mac os virtual machine in the left list panel, then click the Settings icon in the top bar to open the virtual machine settings window.The configuration includes system motherboard & processor, display video memory, choose mac os iso file in storage, and network mapping method. Now the macOS virtual machine has been created, and then we need to do some settings for it. 2.2 Configure macOS Virtual Machine To Install macOS Mojave Or High Sierra. Then it will go to the virtual machine list window, you can see the newly created virtual machine in the left panel, and it’s status is Powered Off. Click the Create button in the above window to create the hard disk.Input the hard disk size that you need in this window. Click the Next button in the following two wizard dialog windows until the File location and size wizard dialog window.Select Create a virtual hard disk now radio button in the next wizard window.This can make the virtual machine run faster. Set the virtual machine’s memory size in the next wizard window, you had better set a half memory size of your physical memory size.Input macOS high sierra or macOS Mojave in the Name field, select Mac OS X in the Type drop-down list, select Mac OS X(64-bit) in the Version drop-down list, then click the Next button. Open VirtualBox, click the New button to create a new virtual machine.2.1 Create macOS Virtual Machine In VirtualBox. Install Mac OS On VirtualBox Virtual Machine Steps. This step needs you to have a mac book pro, if you do not have one, you can search the download link ( for example search the sentence macOS Big Sur iso download ) using google and get one. Whether you want to install mac os high sierra or Mojave, you should prepare the high sierra or Mojave iso file first, please read the article How To Download MacOS X High Sierra Installer In Mojave, How To Download macOS Mojave Installer And Convert To ISO File.First, you should install VirtualBox, this is very straightforward in windows, you can just download VirtualBox and install it.

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