4.33MB Free Space After Converting Logical to Primary

Using Hard Disk Manager 2010 Suite on Windows 7.

This is a really minor point.

After successfully converting a logical partition to primary, 4.33MB of free space are found before the partition. I am not able to re-size the partition to absorb this leftover 4.33MB of free space.

It's only 4.33MB so I'm not going to worry about it. But I wonder: Why is it there, and why can't I re-size the partition to absorb it?

 

I assume an extended partition, although not a real partition, more of a "casing" for other partitions if you will, does take up some small amount of space for its creation. So I wouldn't be surprised that it freed up space.