Best Free Antivirus for Windows 11 2024

This is for schema

1. Microsoft Defender

Microsoft Defender Logo

Built-in Windows shield stopping online threats. Read Microsoft Defender full review

4.9
8222 Downloads

👍Pros

  • Free & Built-in
  • Real-time Defense
  • Always Updated
  • Firewall Shield
  • Simple to Use

👎Cons

  • Limited Features
  • Tech Savvy Needed (Maybe)
  • False Positives Possible

2. Bitdefender Antivirus Free

Bitdefender Antivirus Free Logo

Free, basic shield against ever-changing cyber threats. Read Bitdefender Antivirus Free full review

4.4
6945 Downloads

👍Pros

  • Free! Great for basic protection.
  • Top-rated malware detection.
  • Lightweight, easy to run.

👎Cons

  • Lacks advanced features (firewalls, etc.).
  • Limited support options.
  • Upsells to paid versions frequently.

3. Avira Free Security

Avira Free Security Icon

A free all-in-one suite guarding your PC against online threats, with a bonus VPN. Read Avira Free Security full review

4.3
7137 Downloads
By: Avira

👍Pros

  • Free, real-time malware & ransomware protection
  • Basic privacy with browser safety warnings
  • System optimization tools for smoother performance
  • User-friendly interface, easy to navigate

👎Cons

  • Lacks advanced features like email protection & robust firewall
  • Upsells to paid versions can be frequent

4. Kaspersky Free Antivirus

Kaspersky Free Icon

Offers basic protection against common threats for your devices. Read Kaspersky Free Antivirus full review

4.5
7049 Downloads

👍Pros

  • Top-notch threat detection
  • Lightweight, minimal performance impact
  • Free!

👎Cons

  • Lacks some features of paid versions (firewalls, etc.)
  • Some privacy concerns (data collection)
  • Might require advanced settings adjustment for some users

5. Malwarebytes

Malwarebytes Logo

Free Malware Scanner: Stops threats, upgrade for always-on shield. Read Malwarebytes full review

4.7
8548 Downloads

👍Pros

  • Excellent malware detection
  • Good for catching zero-day threats
  • Free version available for basic scans

👎Cons

  • Paid version needed for real-time protection
  • Can slow down system resources
  • Not a complete replacement for traditional antivirus

All Free Antivirus