Error 0xC0380042

Value: -1070071742 | 0xC0380042 | 3224895554

What does it mean ?

ERROR_VOLMGR_TOO_MANY_NOTIFICATION_REQUESTS  
There is already a pending request for notifications. Wait for the existing request to return before requesting for more notifications.
Value: 66 | 0x0042 | 0b0000000001000010

Where does it come from ?

FACILITY_USERMODE_VOLMGR  
User mode volume manager
Value: 56 | 0x038 | 0b00111000

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