Remote Desktop to Windows from Ubuntu 13.10

We can use Remmina Remote Desktop Client to connect to Windows remotely.
Remmina is installed by default on Ubuntu 13.10.

To open Remmina, just use Unity Dash and search for 'remmina'.

To create a new connection, just click the 'Create a new remote desktop file' (It's the second button from the left)

Then enter your connection details and click 'Connect'.

Reference;
http://www.7tutorials.com/connecting-windows-remote-desktop-ubuntu