At work and home I have the same setup, dual monitors. I always RDP into my desktop these days instead of installing Outlook, Office, etc at home and I’ve always found myself not working in dual monitor mode because of this when working remotely.
Turns out you can use multiple monitors in Terminal Services afterall.
Enabling Multiple Monitors via RDP
To enable multiple monitors in an RDP session you’ll use the switch: /span so you’ll start RDP with the command:
mstsc /span
When it loads just log into the machine as you normally do and your display will now span both monitors. The monitors will have to be the same resolution, only supports side-by-side configuration and a maximum resolution of 4096×2048