If you want Ubuntu to mount your windows partition at startup, or any other I think.  1.- Open System->Preferences->Startup Applications  2.- Click Add button.  3.- Name and comment what you want, the important part is Command  4.- type gnome-mount -d  5.- Press ok, and its done. Everytime you start Ubuntu it will mount your partition automatically.  should be something like this: /dev/sda# or /dev/hda# where # is a number, usually between 0..6  If you don't know which is the partition name, install gparted:    sudo apt-get install gparted  Then type sudo gparted in the terminal and you will see the information of all the hard disks on your computer. Also the /dev/...  information you need. Note: The download is less than 1MB. Hope it helps!