I was so happy today that I have been finally able to install Windows Phone 8 SDK and try it a bit. I installed fresh new installation of Windows 8 Pro into my virtual machi
Just as an addition to https://stackoverflow.com/a/13163762/1964969 (top answer at the moment): manually appending "hypervisor.cpuid.v0" key works for VmWare Player 5 as well (the main reason - this software is free for non-commercial use so it's perfect product if you test the waters, just download from VmWare website and install, it's fully-functional).
Slightly unexpected, any of the following amends solve the problem with WP8 emulator:
hypervisor.cpuid.v0="FALSE"
hypervisor.cpuid.v0="TRUE"
hypervisor.cpuid.v0=""
Yeah, you can apply empty value for that key - but why? Have no idea but it works. I did some notes in my blog as well: http://windowsasusual.blogspot.ru/2013/01/how-to-launch-windows-phone-8-emulator.html