Windows Defender highlights:
- Provides robust protection from most types of malware
- Has a built-in firewall
- Phishing protection for IE and Edge browsers
- Parental control feature is available.
- Comes pre-installed in Windows OS; protection is enabled by default.
AVG highlights:
- Decent protection from viruses, ransomware, spyware.
- Scanning of computer’s drives for all types of problems.
- Detecting and preventing zero-day threats.
- Detecting and neutralizing phishing/fraudulent sites.
- Blocking suspicious links and files.
- Scanning incoming e-mails, including attachments.
- Free Mac and Android packages.
- Extra tools like a file shredder.