Sorry, i can't help any further.
I just gave you what i know with my limited experience with this.
I don't have your hardware or OS version.
I just boot Win 7 normally, and then run VMware and start a Win 8 VM OS running as a client OS under the Win 7 Host.
Don't take what i say as the "know all" answer, i'm no expert.
I'm just learning VM and Win 8 as we speak...
Others here may have better answers for you to solve your issue, and post a reply.