“vcpu-0:NOT_IMPLEMENTED vmcore/vmm/intr/apic.c”
Solution to above error is to download & Install Virtual Box 4.1 on your machine & deploy Windows 8 Developer Preview Virtual Machine on top of it. [Guide] Install Windows 8 Developer Preview on VirtualBox 4.1
Windows 8 System Requirements,
1 Gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
1 Gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
16 GB available hard disk space (32-bit) or 20 GB (64-bit)
DirectX 9 graphics device with WDDM 1.0 or higher driver


Thanks, was having the same issue. Any ideas on what the error means?
HAL initialization failure
SJv6VI Thanks so much for the post. Much obliged.