How to keep your computer clean (Beginners Guide)

Malwarebytes isn't meant to keep your PC clean on its own.
It's meant as a "wingman" for a antivirus.
While a antivirus is aimed at primarily viruses, malwarebytes aims at malware, and PUPs (potentially unwanted programs).
Malwarebytes facebook page has responded to multiple users who said they used malwarebytes as a antivirus and told them NOT to do that and that they need to get a antivirus program.
Also if a antivirus is a side feature of any kind odds are it's a low priority for that company and likely isn't up to date with new viruses.