Error 0x801F0011

Value: -2145452015 | 0x801F0011 | 2149515281

What does it mean ?

ERROR_FLT_INSTANCE_ALTITUDE_COLLISION  
An instance already exists at this altitude on the volume specified.
Value: 17 | 0x0011 | 0b0000000000010001

Where does it come from ?

FACILITY_USERMODE_FILTER_MANAGER  
User Mode Filter Manager
Value: 31 | 0x01F | 0b00011111

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