Case 3: Use "Move Volume Slice Wizard"

Environment:
Disk 0: 28GB
Disk 1: 950GB
Disk 2: 249.99GB
System Volume: C drive 5.86GB (on Disk 0)
Simple Volume: E drive 12.01GB (on Disk 0)

The Problem: How to extend system volume (C: drive) without the need to shrink volume E:?
The Solution: Although there is no unallocated space on Disk 0, we can use "Move Volume Slice Wizard" to transfer E: volume to Disk 2 where has 216.15GB unallocated space. After that, there will be 12.01GB contiguous unallocated space behind C drive. In such case, we can use "Resize/Move Volume" to extend system volume (C: drive).

Step1. Launch Aomei Dynamic Disk Manager. Click "Move Volume Slice Wizard" in the left Wizard pane. An information window will pop up, explaining what volume slice is and why use this wizard. Then, click "Next".

Step2.Select the dynamic volume (here's simple volume E:) you want to move. Then, specify the volume slices (here only has a single simple volume slice) you want to move and click "Next".
Step3: Select the destination place to hold E: volume (here choose Disk 3) and click "Finish".
Note: The destination disk must have some unallocated space which should be equal to or larger than the volume slices you want to move.
After completing the above steps, we can find the simple volume E: originally located on Disk 1 has been moved to Disk 3. At the same time, there is 12.01GB unallocated space behind C drive. Now we are able to extend system volume (C: drive) to the contiguous unallocated space.
Then, right-click system volume (C: drive) and select "Resize/Move Volume". In the pop-up window, drag the right slider rightwards to merge unallocated space into system volume. Last but not the least, do remember to click "Commit" on the toolbar to perform pending operations.