Error 0x80045375

Value: -2147200139 | 0x80045375 | 2147767157

What does it mean ?

FSRM_E_REBUILDING_FODLER_TYPE_INDEX  
File Server Resource Manager is rebuilding the index of Folder Usage property values.
Value: 21365 | 0x5375 | 0b0101001101110101

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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