I have noticed that Server 2012 has a bug where copying large files via clipboard between Remote Desktop sessions/and from local computer to Remote computer fails:
Anything over a few gig and I get an "Error Copying File or Folder." I have been able to recreate this consistently on multiple server 2012 standard installations including freshly spawned virtual machines with no custom config. I have been getting around this issue by opening up windows firewall and using UNC paths: \\servname\c$ to copy the files, but I was just curious if there was a patch in the works, or if anyone else had another solution rather than my workaround?