Am not a fan of Malwarebytes, as I had it installed on my laptop at two different points in time. Then it started making my laptop freeze at start up. Disabled or uninstalled it, and poof, problems went away. Did some reading on their site, and they said they knew about the issue, and an update would "fix" it. So did the update at a later stage, and like clockwork a week after the new install, freezes again.
I have Spybot 2 now, and have not had any issues. So if you know how to set it up to work, it hard gives any issues. That's my experience.