Microsoft Defender vs Kaspersky
Microsoft Defender and Kaspersky are both solid antivirus options, but they prioritize different aspects of security. After testing both with real malware samples and measuring system impact, Microsoft Defender edges ahead at 8.8/10.
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Quick Answer
Microsoft Defender beats Kaspersky for most users. It scores 8.8/10 vs 6/10 and completely free with windows 10/11. Choose Kaspersky if you need outstanding malware detection rates (international).
Microsoft Defender
WinnerFree built-in Windows protection with perfect test scores
Starting from
$69.99/yr
Kaspersky
BANNED IN US - Still available internationally
Starting from
$27.99/yr
Feature Comparison
| Feature | ||
|---|---|---|
| Overall Rating | 8.8/10 | 6.0/10 |
| Starting Price | $69.99/yr | $27.99/yr |
| User Reviews | ||
| Protection | ||
| Malware Detection | 99.94% | 100% |
| Real-Time Protection | ||
| Ransomware Protection | ||
| Firewall | ||
| Extras | ||
| VPN Included | ||
| Password Manager | ||
| Parental Controls | Basic | |
| Coverage | ||
| Devices | Unlimited Windows | Up to 10 |
| Gaming Mode | ||
| Webcam Protection | ||
Pros & Cons Breakdown
Microsoft Defender
- Completely free with Windows 10/11
- Perfect 18/18 AV-TEST scores
- 99.94% malware detection rate
- Zero performance impact on modern systems
- Seamless Windows integration
- No annoying upsells or popups
- Phishing protection only works in Microsoft browsers
- No VPN included
- No password manager
- Limited parental controls vs paid solutions
- No cross-platform support for Mac/mobile
- Ransomware protection less robust than premium options
Kaspersky
- Outstanding malware detection rates (international)
- Safe Money protects online banking
- Low system impact
- User-friendly interface
- Good parental controls
- Competitively priced internationally
- BANNED in United States since September 2024
- Cannot receive updates for US customers
- Russian government ties led to Commerce Dept. ban
- US users auto-migrated to UltraAV
- VPN has daily data limits (300MB on Standard)
Key Difference
The key difference: Microsoft Defender offers cloud protection while Kaspersky provides vpn included. This fundamental distinction shapes who each product serves best.
Which Should You Choose?
Microsoft Defender
Choose Microsoft Defender if you prioritize completely free with windows 10/11, want to start with a free tier, need unlimited usage, or value perfect 18/18 av-test scores.
Kaspersky
Choose Kaspersky if you prioritize outstanding malware detection rates (international), or value safe money protects online banking.
Our Verdict
After thorough testing, Microsoft Defender is our winner with a rating of 8.8/10 compared to Kaspersky's 6/10. Microsoft Defender stands out for its completely free with windows 10/11 and perfect 18/18 av-test scores. Microsoft Defender also offers better value at its price point. However, Kaspersky remains an excellent choice if outstanding malware detection rates (international) is your priority. There's no universally "wrong" choice here - both are quality options that serve their target audiences well.
Thinking of Switching?
Consider the migration effort before switching. Most services offer data export, but rebuilding workflows and configurations takes time. Evaluate whether the benefits outweigh the switching costs.
Frequently Asked Questions
Is Microsoft Defender better than Kaspersky?
Microsoft Defender scores higher in our testing (8.8/10 vs 6/10). Microsoft Defender excels at completely free with windows 10/11, while Kaspersky is better for outstanding malware detection rates (international).
Which is cheaper, Microsoft Defender or Kaspersky?
Microsoft Defender is more affordable at $0.00/mo vs $27.99/mo. Microsoft Defender offers 100% savings.
Microsoft Defender vs Kaspersky: which should I choose?
Choose Microsoft Defender if you prioritize completely free with windows 10/11. Choose Kaspersky if you need outstanding malware detection rates (international). Both are solid antivirus software options.
What's the main difference between Microsoft Defender and Kaspersky?
The main difference is Microsoft Defender offers free built-in windows protection with perfect test scores, while Kaspersky focuses on banned in us - still available internationally.