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#81
OK ... are you sure that there are only three primary partitions and one logical partition now ?
How to Create Partition with partition manager? Partition Wizard Create Partition Video Help
Create Partition help of partition software - Partition Wizard.
Part the logical partition into sub partitions, as stated in the above links, obviously format those as logical.
Apply all the changes, and done.
Edit : I am sure that what ignatzatsonic said is just right, you can upload a camera snip of the partition wizard window too.