How to Swap Display Identity (Identities)

What I did to get my Display 1, tv connected by HDMI and my Display 2 monitor to "switch" is:

I right clicked on background and selected "screen resolution"

clicked "Identify" to make sure both displays were working.

Set Multiple displays to "Extend these displays"

I moved the Display 2 in front of Display 1 in change the appearance of your displays.

** I personally moved Display 2 in front of Display 1 because physically on my desk that's how they are set up (monitor on left and TV on the right of my desk).  That way I can move objects right off my monitor on to my TV and left off on my TV to my computer.   If you have your TV on the left and monitor on the right.  You probably want to keep Display 1 in front of 2. 

***** This is important *********   Clicked the box "Make this My main display"  making sure Display 2 ( monitor is showing up in Display) 

*** This box is what changes which monitor will gets the desktop or "makes it your Main Display", the one listed in Display box will get the desktop ***********

If you have the Display number that you want in Display and no box is available for "Make this My main display."  It will read under the Multiple Displays.  "This is currently your main display."  Which means you don't need to switch it.

Actually, display number DOES matter.

I have computer display AND LCD TV connected via reciever. PC display set as primary.

BUT, it has number 2. TV got number 1.

When computer boots, I see BIOS on my PC display.

But, then TV is off, windows login screen goes to TV!

To get my login screen i have to turn on my TV. When I do so, screen blinks and login screen goes to PC display. This is REALLY annoying.

Yes I agree, this is absurd. I'm in the same situation of having a TV attached to a PC, which becomes monitor 1 whenever it's turned on. It DOES matter, for example  MPC-HC has a switch to determine the display to open on - I want it to open fullscreen on the TV, not too much to want.  I had thought that Microsoft had gone to some effort with 7 to make entertainment well, umm, enjoyable. (I made an entry for various file types in the context menu to "Play on TV", that's so convenient apart from this numbering problem).

This same question has popped up in many forums it seems, never with a satisfactory answer; this just happens to be the most recent discussion I've found so far. And this forum has Microsoft in it's name, do any MVPs or any MS staff ever read this?

The only cogent information I've found is that swapping ports on the display card can change the monitor number, but that's just not workable.

Yes the number does not matter as said in this post already.

You get a virtual Desktop in which there are two Monitors

Just move the Monitor in the Virtual Desktop and Mouse cursor would move as you would like it to be