To make a partition from the unused space you would do the following.
1. Right click on the space listed as unallocated.
2. At the menu that comes up, click on the New Partition option.
3. You will now be presented with a wizard as to how you would like the partition to be created. At the first screen press Next. my difficulty is the menu that comes up does not have the create New Partition to click on
so I was wondering how do you add the menu that comes up it doesn't come up no new partition option. thanks