How to merge partitions under win7

The method of merging partitions is actually the inverse of dividing the new partition.
For example, we are going to merge the T disk into the D disk, see the diagram below

Picture a right click and do not want to keep the partition selection <;delete volume” Right click to delete the right click to select “ delete Volume”;

Illustration 2 Select the partition you want to expand

The three disks after the expansion of the diagram have been added to the capacity of this extended partition