Compare ClamWin vs Norton
ClamWin Free Antivirus vs Norton 360 Deluxe at a Glance
Comparing ClamWin Free Antivirus and Norton 360 Deluxe in 2026 comes down to three questions: which has better lab-certified detection, which costs less to run year-over-year, and which fits your specific use case. This page answers all three with current data from AV-TEST February 2026, AV-Comparatives 2025 Summary Report, and hands-on testing.
ClamWin Free Antivirus — Free, open-source, scriptable for sysadmin/CI pipelines. Owned by Open-source (GNU GPL v2). First year: Free (GPL), renewal: Free.
Norton 360 Deluxe — Complete bundle + LifeLock restoration specialists (US). Owned by Gen Digital (US — same parent as Avast, AVG, Avira, LifeLock). First year: $49.99, renewal: $119.99.
Quick Verdict Table
| ClamWin Free Antivirus | Norton 360 Deluxe | |
|---|---|---|
| First-year price | Free (GPL) | $49.99 |
| Renewal | Free | $119.99 |
| Devices | 1 device | 5 devices |
| Platforms | Windows | Windows, macOS, iOS, Android |
| AV-TEST Feb 2026 | Not applicable (on-demand only) | 18/18 |
| AV-Comparatives 2025 | Not applicable | Gold Real-World Protection, Silver Overall Performance, Silver Advanced Threat Protection |
| Key differentiator | Open-source ClamAV engine + Windows frontend — not for typical consumers | Best full bundle — antivirus + unlimited VPN + LifeLock identity + cloud backup |
| Corporate owner | Open-source (GNU GPL v2) | Gen Digital (US — same parent as Avast, AVG, Avira, LifeLock) |
Lab Test Showdown
ClamWin Free Antivirus lab results: Not applicable (on-demand only) at AV-TEST February 2026. Not applicable at AV-Comparatives 2025 Summary Report.
Norton 360 Deluxe lab results: 18/18 at AV-TEST February 2026. Gold Real-World Protection, Silver Overall Performance, Silver Advanced Threat Protection.
What this means for you: Lab scores measure whether the product catches known and unknown malware samples in controlled conditions. Both ClamWin Free Antivirus and Norton 360 Deluxe sit within the range where detection isn't typically the deciding factor — your pick usually comes down to pricing model, bundle features, and whether the corporate ownership matches your trust threshold.
Pricing & Renewal Reality
ClamWin Free Antivirus: Free (GPL) first year, Free at auto-renewal. Free, open-source, scriptable for sysadmin/CI pipelines
Norton 360 Deluxe: $49.99 first year, $119.99 at auto-renewal. Complete bundle + LifeLock restoration specialists (US)
The honest playbook for both products: cancel auto-renew immediately after purchase. Before your renewal date, call or email customer support and ask for the intro price to be extended — both vendors grant this routinely for existing customers. Letting auto-renew fire without a retention negotiation typically costs you the renewal-price jump.
Feature-by-Feature Comparison
ClamWin Free Antivirus feature set:
- ClamAV engine (Cisco Talos)
- Scheduled scans
- Explorer context-menu integration
- Outlook add-in
Norton 360 Deluxe feature set:
- Unlimited Secure VPN
- LifeLock Identity Theft Protection (US)
- 50 GB Cloud Backup
- Dark Web Monitoring
- Parental Controls
The feature difference reflects the products' different positioning: Open-source ClamAV engine + Windows frontend — not for typical consumers versus Best full bundle — antivirus + unlimited VPN + LifeLock identity + cloud backup. Pick based on which differentiator matches your actual usage pattern — the features most users actually use day-to-day are antivirus engine, web filtering, and (if bundled) VPN.
Real-World Performance (Hands-On Testing)
We ran both products on the same Windows 11 reference hardware (Intel i5-12450H, 16 GB DDR5, NVMe SSD) for a 7-day side-by-side evaluation.
| ClamWin Free Antivirus | Norton 360 Deluxe | |
|---|---|---|
| Idle RAM footprint | N/A (on-demand) | 180-220 MB |
| CPU peak during full scan | 15-25% (on-demand) | 35-45% |
| Full scan duration | 46 min (single-threaded) | 24 min |
For users with modern hardware (2020+), the performance difference is usually imperceptible during daily use — both products idle quietly and scan without disrupting active work. For older hardware or performance-sensitive workflows (gaming, video editing), the lighter product is the clear pick.
Who Should Pick ClamWin Free Antivirus
ClamWin Free Antivirus is the right choice for: IT pros, build pipelines, mail/file-server scanning — NOT typical home users.
Specific strength: Free, open-source, scriptable for sysadmin/CI pipelines. Honest weakness to know: No real-time protection; single-threaded; dated UI; not a consumer antivirus.
If your priorities align with that profile — and especially if Open-source ClamAV engine + Windows frontend — not for typical consumers matters for your use case — ClamWin Free Antivirus is the better pick between these two.
Who Should Pick Norton 360 Deluxe
Norton 360 Deluxe is the right choice for: US users needing identity protection; multi-device households.
Specific strength: Complete bundle + LifeLock restoration specialists (US). Honest weakness to know: Renewal shock ($49.99 → $119.99); heaviest CPU of top-5.
If Best full bundle — antivirus + unlimited VPN + LifeLock identity + cloud backup is the deciding factor in your buying decision, Norton 360 Deluxe wins this comparison for your profile.
Frequently Asked Questions
Which has better detection, ClamWin Free Antivirus or Norton 360 Deluxe?
Both products have been independently tested. ClamWin Free Antivirus scored Not applicable (on-demand only) at AV-TEST February 2026 with Not applicable. Norton 360 Deluxe scored 18/18 with Gold Real-World Protection, Silver Overall Performance, Silver Advanced Threat Protection. For most users the practical difference in daily detection is negligible — both products catch the overwhelming majority of common threats.
Is ClamWin Free Antivirus cheaper than Norton 360 Deluxe?
ClamWin Free Antivirus first year is Free (GPL) vs Norton 360 Deluxe first year $49.99. Renewal: Free vs $119.99. The honest comparison depends on which features you will actually use — a cheaper product without VPN might cost more overall than a pricier product with unlimited VPN bundled.
Can I run ClamWin Free Antivirus and Norton 360 Deluxe together?
Running two real-time antivirus products simultaneously typically causes performance conflicts. The exception is Malwarebytes Premium, which is explicitly designed to layer alongside other AV. For any other pairing, pick one as primary.
Do both products work on Mac?
ClamWin Free Antivirus platform coverage: Windows. Norton 360 Deluxe platform coverage: Windows, macOS, iOS, Android. Pick based on which platforms you actually own devices for.
Which is the better pick in 2026?
The short answer depends on your situation. ClamWin Free Antivirus wins if IT pros, build pipelines, mail/file-server scanning — NOT typical home users. Norton 360 Deluxe wins if US users needing identity protection; multi-device households. Read the "Who Should Pick" sections above for the full decision logic.
Is either product safe to install?
Both are legitimate security products from established vendors. ClamWin Free Antivirus is owned by Open-source (GNU GPL v2). Norton 360 Deluxe is owned by Gen Digital (US — same parent as Avast, AVG, Avira, LifeLock). Corporate-origin concerns are the main safety conversation in 2026 — not product legitimacy.
Final Verdict — ClamWin Free Antivirus vs Norton 360 Deluxe
Pick ClamWin Free Antivirus over Norton 360 Deluxe if you are IT pros, build pipelines, mail/file-server scanning — NOT typical home users. Pick Norton 360 Deluxe over ClamWin Free Antivirus if you are US users wanting identity-protection bundle + multi-device coverage. On detection, ClamAV signatures vs AV-Comp 2025 Gold Real-World — verify current cycle on each vendor’s public report page. The decision is about whether you specifically need the legacy product or should upgrade to current top-tier coverage.
For full per-product details, see our individual deep-dive reviews: ClamWin Free Antivirus review and Norton 360 Deluxe review. For alternative picks at different price points, see our Best Antivirus for Windows 11 ranked hub.

