Error 0x80042935

Value: -2147210955 | 0x80042935 | 2147756341

What does it mean ?

VDS_E_VD_ALREADY_DETACHED  
The virtual disk is already detached.
Value: 10549 | 0x2935 | 0b0010100100110101

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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