How to switch monitor if you can't see the main one?

Question

Monitors

Good day. The essence of the problem is that the monitor on my monoblock from lenovo broke down. I connected it via hdmi to another monitor, but the image is not displayed. I tried blindly, but without precise commands, I can't do anything. I didn't find anything on the Internet. It talks about laptops and their keyboard shortcuts. But it doesn't suit me. I have windows 8.1

Answer 1

try reloading it

Answer 2

Press Win + P a couple of times