Black screen in the middle of installation ?

Hello is any body able to help?.

Trying to boot windows via parallel on an external hard drive. I were following this video:



I were half way into installation and the Mac restarted which it does on the video, however I then tried to carry on the installation after it restarted and I went back on to the hard drive to finish the installation and the screen is just black and I cannot use my mouth or keyboard or anything?. I have tried to restart and try several times but I am struggling. What can I do or where have I gone wrong as I have followed step by step?

Kind regards.

Corey.

 

EDIT: I re installed the installation and tried to install the drivers like he does in the video and then the screen stays black and have tried to restart the Mac about 6 times and still facing the issue.

 

Hello, do you have a black screen issue on your Mac side or on your VM side?
Sorry in advance for the misunderstanding.