A Windows laptop showing a security shield and a clean malware-scan result

We Compared Every Major Antivirus by Lab Score. One Surprised Us.

Malwarebytes, Bitdefender, Norton 360 and Microsoft Defender — ranked on independent AV-TEST lab scores, price, and features for US users.

Updated June 2026Verified Jun 14, 2026 across 12 sources

Prices verified Jun 14 · Always confirm at the retailer before buying.

🏆 Best Overall: Malwarebytesfrom $59.99/yr

🆓 Best Free: Microsoft Defenderbuilt into Windows

🛡️ Best Feature Set: Bitdefender$59.99 first year

Data: AV-TEST April 2026 lab scores across 5 finalists

🎯 Key Insight: Free Defender plus Malwarebytes covers most people

Which antivirus should you use in 2026?

Lab scores are synthesized from the AV-TEST April 2026 Windows 11 Home User round and AV-Comparatives performance testing, cross-referenced with PCMag, Tom's Guide and TechRadar reviews and official US pricing pages. Community sentiment is drawn from r/antivirus, r/Windows11 and r/pcmasterrace. Prices reflect official US pages as of June 2026.

How did we pick these?

Brands evaluated: We screened the antivirus products US users can actually run in 2026 — Malwarebytes, Bitdefender, Norton 360 and Microsoft Defender — plus Kaspersky, which we include only with a US-availability warning.

Sources: Verdicts were synthesized from independent AV-TEST and AV-Comparatives lab results, PCMag, Tom's Guide and TechRadar reviews, and official pricing pages.

First-party data: We pulled each protection, performance and usability score directly from the AV-TEST April 2026 Windows 11 Home User table and checked every price against the vendor's official US page in June 2026.

Hard requirements: Every ranked pick had to be legally available and actively updated for US users and had to appear in a current independent lab test. Kaspersky meets the lab bar but fails US availability, so it carries a warning rather than a buy recommendation.

Mubboo Pick ✓

Malwarebytes Premium

1 of 5
Malwarebytes logo
WHERE TO BUYMubboo Pick ✓
MMalwarebytesMubboo Pick$59.99

Prices checked Jun 14, 2026 · Affiliate

Light footprintAV-TEST 6.0 usability

Pros:

  • Light system footprint and clean, upsell-free interface
  • Perfect AV-TEST performance and usability scores
  • The community's favorite layer beside Windows Defender
  • Simple to set up for non-technical users

Cons (honest weight):

  • AV-TEST protection score (5.0/6) trails the full suites
  • Weaker phishing and web protection than rivals
  • VPN and identity tools only on pricier tiers
Best for: People who want a simple, light second layer on top of Windows Defender.
Skip if: You want one suite with the highest lab protection and the most bundled extras.

Mubboo Verdict

Light and clean, Malwarebytes is the community's favorite second layer beside Windows Defender. Lab protection (5.0/6) trails the suites, but at $59.99/yr it stays friction-free.

Best Feature Set

Bitdefender Total Security

2 of 5
Bitdefender logo
WHERE TO BUYMubboo Pick ✓
BBitdefenderMubboo Pick$59.99

Prices checked Jun 14, 2026 · Affiliate

Perfect 6/6/65 devices

Pros:

  • Perfect AV-TEST protection, performance and usability
  • Loaded with VPN, password manager and ransomware tools
  • PCMag Editors' Choice rating
  • Covers five devices on one plan

Cons (honest weight):

  • Renewal price rises sharply after the first year
  • Bundled VPN is data-capped on the entry tier
  • Slightly heavier performance impact than Norton
Best for: Users who want the deepest feature set and a top lab score in one suite.
Skip if: You prefer a minimal, single-purpose scanner with no extra modules.

Mubboo Verdict

A perfect AV-TEST 6/6/6 and a loaded toolkit make Bitdefender the feature champion. At $59.99 the first year for five devices it is excellent value before renewal.

Best for Families

Norton 360 Deluxe

3 of 5
Norton logo
WHERE TO BUYMubboo Pick ✓
NNortonMubboo Pick$49.99

Prices checked Jun 14, 2026 · Affiliate

50 GB backupParental controls

Pros:

  • Perfect AV-TEST score with a light performance impact
  • Includes 50 GB of cloud backup
  • Strong parental controls for households
  • Bundled VPN, password manager and dark-web monitoring

Cons (honest weight):

  • Renews at $119.99 after the $49.99 first year
  • Interface bundles a lot of upsells
  • VPN and backup are tied to one ecosystem
Best for: Families who want device coverage, backup and parental controls together.
Skip if: You only need a scanner and do not want backup or parental tools.

Mubboo Verdict

A perfect lab score plus 50 GB of backup and parental controls make Norton 360 Deluxe the family pick at $49.99 the first year — just watch the $119.99 renewal.

Best Free

Microsoft Defender

4 of 5
Microsoft logo
WHERE TO BUYMubboo Pick ✓
MMicrosoftMubboo Pick$0

Prices checked Jun 14, 2026 · Affiliate

Free with WindowsPerfect 6/6/6

Pros:

  • Completely free and built into Windows 10 and 11
  • Perfect AV-TEST protection, performance and usability
  • No nagging upsells or renewal pricing
  • Zero setup — it is on by default

Cons (honest weight):

  • Heavier real-world performance impact than paid suites
  • No bundled VPN, password manager or dark-web monitoring
  • Weaker phishing protection than full suites
Best for: Most everyday users who practice safe browsing and want zero cost.
Skip if: You want bundled extras like a VPN, backup, or family tools.

Mubboo Verdict

Now scoring a perfect AV-TEST 6/6/6, the free Defender built into Windows is genuinely enough for most people — pair it with Malwarebytes and you are covered.

Top Lab Scores (US-restricted)

Kaspersky Premium

5 of 5
Kaspersky logo
WHERE TO BUYMubboo Pick ✓
WWhy Kaspersky left the USMubboo Pick$0

Prices checked Jun 14, 2026 · Affiliate

Perfect 6/6/6Not sold in US

Pros:

  • Perfect AV-TEST score in the April 2026 round
  • One of the lightest performance footprints tested
  • Strong global feature set on the Premium tier

Cons (honest weight):

  • Banned from US sale since the 2024 federal order
  • No longer pushes updates to US installations
  • Existing US users were migrated to a different product
Best for: Readers outside the US comparing pure lab performance.
Skip if: You are in the United States — it cannot be purchased or updated here.

Mubboo Verdict

Kaspersky still tops the AV-TEST lab charts, but it cannot be sold or updated in the US after the 2024 ban — US readers should choose a supported product instead.

ProductAnnual price (US)AV-TEST (Prot/Perf/Use)Performance impactKey extrasBest forRating
Malwarebytes Premiumfrom $59.995.0 / 6.0 / 6.0LightBrowser GuardMost people4.5
Bitdefender Total Security$59.99 first yr6 / 6 / 6ModerateVPN, password mgr, ransomwareFeature set4.7
Norton 360 Deluxe$49.99 first yr6 / 6 / 6Light50 GB backup, parental controlsFamilies4.6
Microsoft DefenderFree6 / 6 / 6HeavierBuilt-in protectionFree option4.3
KasperskyNot sold in US6 / 6 / 6Very lightUS-restrictedLab scores only4.2

What real users are saying

Community scan: r/antivirus, r/Windows11, r/pcmasterrace and r/it threads from 2025 into 2026.

The dominant view. Across every antivirus subreddit, the most repeated advice is the same: Windows Defender plus Malwarebytes is enough for the vast majority of home users, and most paid suites are seen as unnecessary extra weight.

Microsoft Defender. Reddit users praise it as the least invasive option — no upsells, no cost, and lab scores good enough that commenters in r/Windows11 call it all most people need.

Malwarebytes. The community likes it as a light on-demand second-opinion scanner that pairs cleanly with Defender, though some note its web and phishing protection is weaker than a full suite.

Norton and Bitdefender. Both draw respect for their lab performance and feature depth, but also recurring complaints that paid suites are resource-heavy and aggressive on renewal pricing — the single most common reason users say they drift back to the free Defender plus Malwarebytes setup.

Kaspersky. US-based threads now mostly discuss the 2024 ban and the automatic migration away from it rather than the software itself; users outside the US still rate it well, but American commenters treat it as off the table.

The consistent takeaway across these communities is that for ordinary home use, spending more does not buy meaningfully more protection than a careful free setup.

Kaspersky for US users

Kaspersky posts elite lab scores, but it has been banned from US sale since 2024 and no longer delivers updates to US machines. Running unpatched security software is worse than running a supported free option.

Stacking multiple paid suites

Two real-time antivirus engines can conflict, slow your PC, and flag each other. Pick one primary scanner; an on-demand tool like Malwarebytes is the only safe second layer.

McAfee-style bundled trials

The antivirus preloaded on many new PCs often auto-renews at a high price after a short trial. Either commit to it knowingly or remove it and rely on Defender.

"Free" antivirus from unknown brands

Unknown free antivirus apps frequently bundle adware or sell data. Microsoft Defender is the free option that is genuinely safe to trust.

Pick by what matters most to you

Want the simplest safe setup? Keep Microsoft Defender on and add Malwarebytes from $59.99/yr as a light second layer.

Want one suite with every tool? Bitdefender Total Security bundles a VPN, password manager and ransomware protection with a perfect lab score.

Protecting a whole family? Norton 360 Deluxe adds 50 GB of backup and parental controls across five devices for $49.99 the first year.

Refuse to pay anything? Microsoft Defender alone now scores a perfect 6/6/6 and is enough for careful everyday users.

Comparing pure lab scores from outside the US? Kaspersky leads the charts — but US readers cannot legally run it.

Want more digital-safety picks? See our best VPN services and best privacy tools guides, or browse the full Mubboo Shopping hub for more buying advice.

Match antivirus to your situation

Simplest safe setup: Microsoft Defender (free) plus Malwarebytes from $59.99/yr.

Most features: Bitdefender Total Security at $59.99 the first year for five devices.

Best for families: Norton 360 Deluxe at $49.99 the first year with backup and parental controls.

Prices are official US figures as of June 2026 and exclude renewal increases — check the current offer before you subscribe.

Frequently Asked Questions

What is the best antivirus in 2026?

For most US users, free Microsoft Defender paired with Malwarebytes is the best setup. Defender now scores a perfect 6/6/6 on AV-TEST, and Malwarebytes adds a light second layer.

If you want one suite with every tool, Bitdefender Total Security is the strongest all-in-one pick.

Is Windows Defender good enough on its own?

Yes, for most careful users. Microsoft Defender earned a perfect 6/6/6 on the AV-TEST April 2026 round and is built into Windows at no cost.

It lacks extras like a VPN or password manager and has a slightly heavier performance impact, so pairing it with Malwarebytes covers the gaps.

Why isn't Kaspersky recommended for US readers?

Kaspersky cannot legally be sold, bought, or updated in the United States. A 2024 federal ban stopped US sales, and Kaspersky stopped pushing updates to US machines in September 2024.

It still scores well in labs, but running security software that no longer updates is unsafe — US users should choose a supported product.

Which antivirus is best for families?

Norton 360 Deluxe is the family pick. It pairs a perfect AV-TEST score with 50 GB of cloud backup and parental controls across five devices for $49.99 the first year.

Note that it renews at $119.99, so set a reminder before the second year bills.

Does antivirus slow down your computer?

Modern antivirus has a small impact, but it varies. AV-Comparatives rated Kaspersky and Norton among the lightest in 2026, while Microsoft Defender carried the heaviest measured impact of the group.

For older or lower-spec PCs, a lighter suite like Norton or a minimal Malwarebytes setup is the better fit.

Is paid antivirus worth it over the free option?

Only if you want the bundled extras. Defender matches the paid suites on core lab protection, so the case for paying is the VPN, password manager, backup, or parental controls they add.

If you do not need those, the free-plus-Malwarebytes setup is the value choice.

What do AV-TEST scores actually mean?

AV-TEST rates three areas out of 6: Protection, Performance, and Usability. Protection measures malware blocking, Performance measures system slowdown, and Usability measures false alarms.

A perfect 6/6/6 means top marks in all three; four of our five picks hit it in April 2026, with Malwarebytes scoring 5.0 for protection.

Can I run two antivirus programs at once?

Not two real-time scanners. Two always-on engines can conflict and slow your PC.

The safe pattern is one primary scanner — Defender or a paid suite — plus an on-demand tool like Malwarebytes that you run manually, which does not conflict.

Who wrote this and where's the data from?

Written by the Mubboo Editorial Team. Our rankings are synthesized from independent AV-TEST and AV-Comparatives lab results, cross-referenced with PCMag and Tom's Guide reviews, official pricing, and r/antivirus community sentiment.

This never affects our rankings.

Sources

  • AV-TEST — Windows 11 Home User, April 2026
  • AV-Comparatives — Performance Test April 2026
  • Malwarebytes — Official Pricing
  • Bitdefender — Total Security (US)
  • Norton — Norton 360 Deluxe (US)
  • PCMag — Bitdefender Total Security Review
  • PCMag — Norton 360 Deluxe Review
  • PCMag — Built-in Windows Antivirus Is Enough for Most
  • Tom's Guide — Best Antivirus Software 2026
  • TechRadar — Malwarebytes Premium Security Review
  • The Hacker News — Kaspersky Exits U.S.
  • Security.org — Norton Pricing 2026