Good Morning.
While doing some maintenance earlier, it occurred to me that I have never been able to successfully remote control a Windows 7 computer. I always get the 'RPC unavailable' error, even though everything is set up via group policy. It's hit and miss if I can get intro C$ or Admin$, but even when i can do that, I still cant remote control or screengrab these machines.

Yes, it's a part of the group policy.

Alright, I think I've solved it. For anyone who finds this thread, what seems to be the game changer is turning Network Discovery on (its off by default). I'll post back if that isn't the case, but it seems to be what works...