
Again use the slider to set the virtual hard disk size according to your preference. Then make sure “ Create a virtual hard disk now” is selected and click on the Create button. If not, then let at least 50% of physical RAM. Use the slider to increase the memory size up to 8GB if your PC allows it. Next, name the operating System macOS Big Sur. Type macOS Big Sur for the virtual machine name and then click the Expert Mode button. Now, open Oracle VM VirtualBox from its desktop shortcut by double-clicking on it. Install VirtualBox and then its Extension Pack, which you already downloaded. Once you have downloaded the files as mentioned earlier on your Windows machine, do the following steps:. macOS Big Sur ISO How to Install macOS Big Sur Using VirtualBox on Windows 11/10?.

