Цитата(в самом начале):
"The Windows Phone SDK 8.0 setup program checks the prerequisites for running Windows Phone 8 Emulator. It displays warnings if the prerequisites are not present, but it does not require them.
If your computer or your network doesn't support all the requirements for running the emulator, you can still install the SDK and develop apps for Windows Phone 8. You can only debug and test them, however, on a registered Windows Phone 8 phone."