Error 0x8007212A

Value: -2147016406 | 0x8007212A | 2147950890

What does it mean ?

ERROR_DS_PDC_OPERATION_IN_PROGRESS  
Another operation which requires exclusive access to the PDC FSMO is already in progress.
Value: 8490 | 0x212A | 0b0010000100101010

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

Other Errors for FACILITY_WIN32