Error 0x00041902

Value: 268546 | 0x00041902 | 268546

What does it mean ?

At least one content index definition was not initialized. Check the amount of free disk space, and verify that the registry configuration is correct.
Value: 6402 | 0x1902 | 0b0001100100000010

Where does it come from ?

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