In most cases Ubuntu mounts your hard disks during OS installation, but sometimes your windows hard drives are not mounted and you can not use them until you mount them manually. But now there is a simple solution with a program called Pysdm. To install the program go to Applications/Accessories/Terminal and enter:

sudo apt-get install pysdm

After installation enter:

sudo pysdm

On partition list you can found a list of your hard drives, so click on the drive you want to mount, then on general preferences tab click Mount and apply.

Tags | Howto, Linux, Tips and Tricks, Tutorials, Ubuntu