Error 0x80040D8B

Value: -2147218037 | 0x80040D8B | 2147749259

What does it mean ?

GHTR_E_INSUFFICIENT_DISK_SPACE  
The new content index cannot be added because there is not enough disk space. Free up at least 10 megabytes of free space, and then try again.
Value: 3467 | 0x0D8B | 0b0000110110001011

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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