I downvoted because I think this is not true. Kaspersky holds a company in UK and their reputation is the best so far in terms of efficiency, service and respect to terms with costumers. And from my experience pirating software (including video games) it is better than Windows defender in that it has less to no false positives, and detects the actual malware. Hell it even saves the system after being infected, I am told this by 2 friends and my brother.
And it offers real time protection on the free tier so it beats Malwarebytes in this aspect.