Resizing a partition in Windows Vista
In the earlier version of Windows, we need to tools like Partion Magic to partition and reformat our existing partitions without disturbing the data or reinstalling the drives. However, Windows Vista has the ability to do all that without any external software. Now that is something cool. Let's see how can we put it to use.
To resize you Windows Vista partition, go to the Start Menu, Right click on 'Computer' and click 'Manage'.
Keep pressing continue if you get any dialog boxes.
Now in the left page, click on 'Storage Category' and then on 'Disk Management'
Finally, right click the partitions you would like to modify, and edit them just like you did with Partition Magic.