Resize that large Windows Partition
This tutorial will guide you through the process of resizing your large hard drive partition to make room to install another operating system (you're going with Debian GNU/Linux, right?) right alongside your original install of Windows. Many of you would . . .
We can discuss all kinds of issues that you may have right here. Some visitors to the site had isues with their mouse, etc.
I dig using the System Rescus Disc, others may not. There are many ways that you can manage your partitions.