Unable to install VMD

Hi,

just go to System Preferences>Security & Privacy and allow VMD to be installed (click on "Open Anyway).

Hope it helps

Cheers

For non-Mac App Store applications, there is a one-time ritual to get the application verified by the operating system security.

Right-click on the application, and select Open from the secondary menu. Another panel will likely open that tells you the application is from an unknown developer. Click that Open button too. A progress-bar will appear as the application is verified. When that is done, the ritual is complete. Afterwards, launch the application in the normal manner.