I use AVG Free mostly with Malwarebytes also. I also run Hitman Pro as it's the best second opinion cleaner.
What is the antivirus program do you prefer?
since i started using chromebooks a few years ago, i haven't used Antivirus since but if i did have to pick one, it would be Microsoft's Windows Defender and Malwarebytes along side.
Windows Defender (formerly Windows Security Essentials). Excellent program that hasn't let me down once in three years. And it's free.
I use Microsoft Security Essentials, CCleaner, and Malwarebytes.
Run these at least once a week, or if you have been diverted to a different website then you intended.
avg
Avg free. But used Kaspersky.
Using SpyHunter now and love it. It is paid anti-malware. I appreciated their technician help me get rid of the RobinHood Ransomware patiently and nicely.