Re-adjust the space occupied by the dynamic vhdx

Original link: http://www.cnblogs.com/Bob-wei/p/10870956.html

优化vhd：https://docs.microsoft.com/en-us/powershell/module/hyper-v/optimize-vhd?view=win10-ps

1. Volume pop vhdx

2. Run in Powershell administrator:

Optimize-VHD -Path c:\test\dynamic.vhdx -Mode Full

Reproduced in: https: //www.cnblogs.com/Bob-wei/p/10870956.html