Select your disk and click on the Install button on the screen stating macOS will be installed on your disk (the installation start – 4mins remaining).Agree button (in the small popup to confirm you have read the terms).Continue (button) on the “Install macOS High Sierra” screen.

Exit Disk Utility (menu Disk Utility -> Quit Disk Utility) and back to the “macOS Utilities” screen.Click Erase button Click Done button once the erasing process is done.Select your disk and choose the “Erase” button (give it a Name: and leave the Format: as “Mac OS Extended (Journaled)” and the Scheme: as “GUID Partition Map”).From the menu choose View -> “Show All Devices” (your HDD will show up on the interface).Choose Disk Utility (u won’t see the HDD).The new screen is titled “macOS Utilities” with 4 options: Restore from Time Machine Backup Install macOS Get Help Online and Disk Utility.It will put you at the Language selection screen with English as default (Next button).VBoxManage setextradata 'mac3' 'VBoxInternal/Devices/efi/0/Config/DmiBoardProduct' 'Mac-27ADBB7B4CEE8E61' VBoxManage setextradata 'mac3' 'VBoxInternal/Devices/smc/0/Config/DeviceKey' 'ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc' VBoxManage setextradata 'mac3' 'VBoxInternal/Devices/efi/0/Config/DmiSystemProduct' 'iMac14,2' VBoxManage setextradata 'mac3' 'VBoxInternal/Devices/efi/0/Config/DmiSystemVersion' '1.0' VBoxManage setextradata 'mac3' 'VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC' 1 From an admin CLI (cmd.exe), run the following commands (substituing your VM-name for “mac3”):.Insert file macOS_High_Sierra_10_13_1_Official.iso into the CDROM drive.Other VM settings include: Chipset set to PIIX3*, Memory size at least 4GB, 2x CPUs, 128MB Video Memory, Network (Adapter) interface, Disk at least 40GB.Create a new VM with Type “Mac OS X” and Version “Mac OS X (64-bit)”.Download 5.07GB Sierra ISO image (macOS_High_Sierra_10_13_1_Official.iso) with md5sum 2ba1e2160b69a9bd080646664c8edc12 (though any bootable one you can get should do).Download VirtualBox 5.2.x and install it.

Mac os x sierra virtualbox