
Click on the right arrow button at the bottom right corner and select Disk Utility Option.Again open VirtualBox and click on Start.VBoxManage setextradata "MacOS Big Sur" "VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC" 1 VBoxManage setextradata "MacOS Big Sur" "VBoxInternal/Devices/smc/0/Config/DeviceKey" "ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc" VBoxManage setextradata "MacOS Big Sur" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Iloveapple" VBoxManage setextradata "MacOS Big Sur" "VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0" VBoxManage setextradata "MacOS Big Sur" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "iMac11,3" You can also download these commands from here. Type your virtual machine name in place of MacOS Big Sur. Alternatively, you can also execute this one by one. Copy and paste the following lines into the command prompt and hit Enter.Now close VirtualBox and open Command Prompt as an administrator.


