Error 0x80071783

Value: -2147018877 | 0x80071783 | 2147948419

What does it mean ?

ERROR_CS_ENCRYPTION_EXISTING_ENCRYPTED_FILE  
File is encrypted and should be opened in Client Side Encryption mode.
Value: 6019 | 0x1783 | 0b0001011110000011

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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