I have 4 OS's on my dual boot system: backtrack 5, Windows 7, Ubuntu 12.04 LTS, and Lubuntu. My win7 OS is kinda broken (I hate windows now :P), and I am now using my Ubuntu installation.
I only have 14GB of free space, and I would like more. So, I need to take some from my Windows installation, and give it to my Ubuntu OS. Bear in mind I need to keep my windows system intact, I need to take about 20GB if possible.
Can anyone tell me how to do this?