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.
Bitdefender highlights:
- Bitdefender comes with many outstanding features, including anti-fishing/fraud, autopilot, work/movie/game modes, Wi-Fi SA (Security Advisor), online banking protection (it’s awesome), safe browsing, and more.
- This is, by far, one of the most intuitive and simple antiviruses on the market.
- Impressive third-party test results (only rivaled by Kaspersky).
- There’s a 30-day free trial for most packages. Total Security offers a 90-day trial.