To connect from your Windows to Ubuntu via Remote desktop you need to install xRDP server. From command line in your Ubuntu install xRDP:
sudo apt-get install xrdp
Now from your Windows start Remote Desktop application and connect via IP or host name to your ubuntu.
If everything goes well your Ubuntu desktop will appear. Sign in with your login information and you’re done.
If you have a problem connecting, run the commands below and restart Ubuntu, then try again.
echo “gnome-session –session=ubuntu-2d” > ~/.xsession
Or install gnome session fallback.
sudo apt-get install gnome-session-fallback