Windows Phone 8 emulator error - Hyper-V missing

问题

In my Windows Phone app,I am facing an error when try to run the emulator. Error comes with following description:

BTW I am using windows 8.1 which is not activated yet! How to fix this error ?

来源：https://stackoverflow.com/questions/21936489/windows-phone-8-emulator-error-hyper-v-missing