In this post, you’ll learn more about the Error ERROR_VOLMGR_EXTENT_NOT_SECTOR_ALIGNED – 0xC038001D that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_VOLMGR_EXTENT_NOT_SECTOR_ALIGNED – 0xC038001D
Win32 COM Error Error Description
The specified volume extent is not sector aligned.