Error 0x80070315

Value: -2147024107 | 0x80070315 | 2147943189

What does it mean ?

ERROR_LOST_WRITEBEHIND_DATA_NETWORK_SERVER_ERROR  
{Delayed Write Failed} // Windows was unable to save all the data for the file %hs; the data has been lost. // This error was returned by the server on which the file exists. Please try to save this file elsewhere.
Value: 789 | 0x0315 | 0b0000001100010101

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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