In this post, you’ll learn more about the Error ERROR_VOLMGR_ALL_DISKS_FAILED – 0xC0380029 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_VOLMGR_ALL_DISKS_FAILED – 0xC0380029
Win32 COM Error Error Description
All disks belonging to the pack failed.