Error 0x8004253C

Value: -2147211972 | 0x8004253C | 2147755324

What does it mean ?

VDS_E_DISK_DYNAMIC  
The disk is already dynamic.
Value: 9532 | 0x253C | 0b0010010100111100

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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