I haven't had much luck to date getting up and running with the WP8 SDK for Visual Studio 2012. When I attempt to start the emulator I get the message:
"The connection to the virtual machine has been lost. The virtual machine may have been turned off by another application. The Windows Phone Emulator must close. "

I have a 64-bit Intel i5 processor with virtualization enabled in the bios. Hyper-V is installed
"The connection to the virtual machine has been lost. The virtual machine may have been turned off by another application. The Windows Phone Emulator must close. "

I have a 64-bit Intel i5 processor with virtualization enabled in the bios. Hyper-V is installed