You should explain what to do.
I run your program, see the message in the form, move the mouse to the top of the screen, right-click -> nothing happens.
But if I click OK in your form, move the mouse to the top of the screen, right-click, then there's a window all over the screen width with white text "Hi, I'm your EASY MENU ... Press ESC to ext" on blue background. Is this what you want to see?
I am using Win10.