If you can do without a few extras, Avast Free Antivirus 2017 defends against malware and phishing better than other freebie antivirus programs (although not nearly as well as the best paid versions). It even includes some useful pluses, such as a password manager and router security scan feature.
- Good malware detection
- Nice bonus features
- Less effective than best paid antivirus
- False alarms and computer slowdowns in some tests