There does not seem to be any problem.In Windows, the power to change the size of a partition is limited. The general rule is to make the drive smaller by allowing more unused space after the partition. In other words, the right side of the graphic. But tools like Mini-Tool and Easeus are more flexible. But even with those tools, a reboot may be needed. All other programs must be shut down.
Here is link to Easeus.
http://www.easeus.com/partition-manager/You may want to proactive on a old drive until you get the knack. Make a mistake and you lose your data and even the system.
Windows and Linux programs differ in representation of the extended partition. In Linux it is partition 5, but does not hold data. The logical partitions will be shown inside partition 5. Then when you create a logical partition, such might be 6, 7 or 8 or higher.
On the other side, how Windows numbers partitions is a bit of a mystery. Windows may number the first logical portion as 4 when there are 3 primary partitions on the drive. I am not sure of how that works.
