Error 0x0004241A

Value: 271386 | 0x0004241A | 271386

What does it mean ?

VDS_S_DISK_PARTIALLY_CLEANED  
The disk is not fully cleaned due to I/O error.
Value: 9242 | 0x241A | 0b0010010000011010

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

Other Errors for FACILITY_ITF