I have Malwarebytes Premium 3.0.6 and Avast Free Antivirus.

I understand that both have some similar functions, however both have different methods.

Please:

  1. What exactly are these similar and different functions that each software has?

  2. Is out there any other software providing a security/protection function that both software don’t?

  3. Windows firewall is enough? Or a third-party is needed?

Thank you!