I am using a Macbook Pro system with El Capitan that has an external monitor plugged into the lightning port and has my desktop expanded across the laptop screen and the external monitor.
Whenever I start an RDP (v8.0.38) session (by this I mean connect to another computer, and not just start the RDP application), the session window always starts in full screen mode and covers the entire desktop. This is sort of OK when I am only using the laptop itself. But when I have the external monitor plugged in, the RDP session window extends across both the laptop screen and external monitor as one big RDP window. The only way I can get the RDP session window to only cover one physical screen is to disconnect the external monitor prior to starting the RDP session, and then plug the monitor back in.
If I don't remove the external monitor, and then instead just try to change the RDP session window resolution (via
⌘-1) then weird things happen to the RDP session window (I see a blank window) and I end up closing the RDP session and starting all over again.
So how do I start an RDP session in windowed and not full screen mode?