difarn 14:39 13 Apr 2018
There is usually a function key that will also enable you to see the projected image on your laptop screen - something like Fn + F5. It depends upon the laptop.
You could also try
1) Right-click on the desktop, click on Properties and on the Display Settings choose monitor 1 as your primary display adapter.
2) Setup that external display (Projector) as a 2nd monitor.
3) Click on Apply and Ok.