It happened twice that windows defender and windows updates were disabled after a virus. So I was downloading a software from a website and accidently clicked on fake download button (the one which is an ad). Now iam always very careful about it but this one time i just got tricked into clicking on it. Anyways if any virus can just disable our only line of defence then what’s the point of using it.
P.S : I do now use malwarebytes but I really hope that Microsoft makes it better in their next update.