In this post, you’ll learn more about the Error ERROR_VOLMGR_NO_REGISTERED_USERS – 0xC038002A that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_VOLMGR_NO_REGISTERED_USERS – 0xC038002A
Win32 COM Error Error Description
There are currently no registered users for notifications. The task number is irrelevant unless there are registered users.