I have followed the best I know how to extend projection from our new computer. 

With the secondary projection on I clicked on windows key and “P” and on the drop down window I clicked on extend and saved. I did not see my desktop on the projection screen. I repeated the windows logo and “P” it was still on extended. tried this several times.

Try right clicking on the desktop and selecting "Display Settings". This gives you more control and options. It will also tell you if both displays are functioning.

My pleasure. Thanks for letting us know. WAY too many people never followup to let us know.