In order to launch VirtualBox virtual machines on your Arch Linux box, follow these installation steps.
VIRTUALBOX 64 BIT LINUX UPGRADE
4.11.1.2.2 Lower security option: using 'disk' group.4.11.1.2.1 Higher security option: using a dedicated group for the Windows partitions.4.11.1.2 Attach virtual disk images to the VM.4.11.1.1 Create virtual disk image files.4.11 Run a Windows partition in VirtualBox.4.10.4 Fix MBR and Microsoft bootloader.4.10.2 Using Disk2vhd to clone Windows partition.4.10 Move a native Windows installation to a virtual machine.4.9.2 UEFI interactive shell after restart.
VIRTUALBOX 64 BIT LINUX INSTALL