Error 0x800720BA

Value: -2147016518 | 0x800720BA | 2147950778

What does it mean ?

Schema update failed: duplicate RDN.
Value: 8378 | 0x20BA | 0b0010000010111010

Where does it come from ?

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

Other Errors for FACILITY_WIN32