Before you install your VM software make sure that you have enabled AMD-V or Intel’s VT-d if your system supports it. You can turn this setting on in the BIOS on your computer. To get into the BIOS reboot the PC and press the delete, F1, enter, Alt, f4 or f10 key before your operating system loads. Each manufacturer has its own key to press to get into the BIOS so do a Google search to find that. The virtualization option may be listed as Intel Virtualization Technology, Virtualization or something similar to that.