RDS 201x copy and paste files does not work

You may find that your RDS users are unable to copy and paste files from their local machine to the remote session. This may actually be required functionality, however if you do want to allow it and the clipboard option is enabled in the RDP client configuration but it still doesn’t work then you need to change a couple of Group Policy settings.

Computer Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Device and Resource Redirection

Do not allow Clipboard redirection – Disabled

Do not allow drive redirection – Disabled

It may work with just the first setting, but in either case these changes should be targeted at your RDS OU.