Error 0xC0380007

Value: -1070071801 | 0xC0380007 | 3224895495

What does it mean ?

ERROR_VOLMGR_DISK_DYNAMIC  
The disk is already dynamic.
Value: 7 | 0x0007 | 0b0000000000000111

Where does it come from ?

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

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