The legitimate 30-day trial is completely free and includes all features. After that, the cost is less than a single pizza delivery per year. Alternatively, use a genuinely free antivirus like Windows Defender – which, despite its flaws, is updated daily by Microsoft.

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| Method | Cost | Notes | |--------|------|-------| | Official ESET website | $39.99/year (1 device) | Full support, automatic updates. | | Amazon/Newegg (legitimate keys) | Often $25–$35 | Ensure sold by ESET or authorized reseller. | | ESET trial (30 days) | Free | Fully functional, no credit card required. | | Student/education discount | Up to 50% off | Check with ESET or your institution. | | Multi-device pack | ~$59.99 for 5 devices | Best value for families. |