Can't update defender and can't scan or oper virus tred protection

[Obaydullah Hasib]

Getting error code 2147416390 when trying to update Windows defender on insider build.

 

[davidhk129]

Assuming this is a Windows 10 PC question, not Mobile.

Do you have a 3rd party anti-virus program installed, such as Avast, AVG, Norton, McAfee etc ?