I upgraded a desktop from win7 pro to windows 10 a couple days ago. When I disconnect from my 8.1 pro laptop, RDP crashes. It still disconnects cleanly from my other win7 machines. But with the win10 machine, I click the close ('x') on the RDP toolbar (?) at the top. I get the normal "Your remote session will be disconnected" dialog. When I click the "OK", I get"Remote Desktop Session has stopped working" and I have to click the "Close Program"

The wn10 machine does disconnect cleanly from a win10 laptop as well as from a win7 pro desktop. So far it's only the 8.1 connection that crashes and only when connecting to the windows 10 machine.