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Best Antivirus 2026: 6 Compared Against AV-Comparatives and AV-TEST

Bitdefender, Microsoft Defender, ESET, Avast One Free, Norton and Malwarebytes ranked on published independent lab results from 2026, not vendor claims, with false-alarm counts stated alongside protection rates.

By ·Apr 11, 2026·Updated Sep 18, 2026·14 min·6 tools compared
AntivirusAnti-MalwareEndpoint SecurityWindows Defender

Answer first

If you use Windows and want to spend nothing, leave Microsoft Defender on and switch on Controlled Folder Access. It scored 99.0% protection with zero false alarms in AV-Comparatives' February to May 2026 Real-World Protection Test, the only product in twenty to record none, and took the top ADVANCED+ award.

If your household has Macs, Android phones and iPads as well, buy Bitdefender Total Security at $59.99 for the first year across five devices. It took 99.5% with 5 false alarms in the same test and a perfect 6/6 for protection, performance and usability from AV-TEST on Windows 11 in June 2026.

If a machine is already infected, run the free Malwarebytes scanner. Do not make it your permanent resident product; see below.

The number most comparisons leave out

Protection rate on its own tells you nothing, because any product can approach 100% by blocking aggressively enough to make the machine unusable. AV-Comparatives publishes a false-alarm count next to every protection rate and downgrades awards when it is excessive, and the February to May 2026 results show exactly why:

Product Protection False alarms Award
Kaspersky Premium 99.8% 3 ADVANCED+
Bitdefender Total Security 99.5% 5 ADVANCED+
Avast One Free 99.3% 5 ADVANCED+
AVG AntiVirus Free 99.3% 5 ADVANCED+
Norton AntiVirus Plus 99.3% 5 ADVANCED+
Microsoft Defender 99.0% 0 ADVANCED+
Malwarebytes Premium 98.8% 39 STANDARD
ESET HOME Security 98.5% 2 ADVANCED
Trend Micro Internet Security 98.3% 83 TESTED

Malwarebytes protected better than ESET and finished two award tiers lower. That is the false-alarm rule doing its job: a product that keeps blocking legitimate software teaches its user to dismiss warnings, and a user who dismisses warnings has no antivirus at all.

Two things a buyer needs to know before shopping

Kaspersky tops the chart and US readers cannot buy it. The US Commerce Department prohibited Kaspersky from selling to US persons in June 2024. Updates ended on 29 September 2024, and around a million US customers were transferred to Pango Group's UltraAV. Any 2026 comparison that recommends Kaspersky to an American reader has not checked.

Price does not predict protection. Free Avast One and free AVG both beat paid McAfee, paid ESET and paid Malwarebytes on protection rate in the same test round. The reasons to pay are multi-device coverage, one console for a household, and support. Detection is not one of them any more.

Surfshark Antivirus has been removed from this comparison. It appeared in the previous version, it is a Nord Security brand following the 2022 merger, and it does not appear in the AV-Comparatives or AV-TEST consumer test rosters. This page does not rank a product no independent lab has published results for.

Antivirus is one control among several. If you are deciding where the next $60 of your security budget goes, a hardware security key or a password manager buys more risk reduction than upgrading from free Defender to a paid suite.

Quick Comparison

ProductBest forAV-Comparatives Feb-May 2026False alarmsAV-TEST Windows 11, June 2026Vendor price (18 Sep 2026)
Bitdefender Total SecurityThe best all-round result, paid99.5%, ADVANCED+56/6 protection, 6/6 performance, 6/6 usability$59.99 first year, 5 devices; $119.99 two-year renewal
Microsoft DefenderFree protection that is already installed99.0%, ADVANCED+0, the lowest of any product tested6/6 protection, 5.5/6 performance, 6/6 usabilityFree with Windows
ESET HOME SecurityLow overhead and very few false alarms98.5%, ADVANCED26/6 protection, 6/6 performance, 6/6 usability (Security Ultimate 19.1)ESET does not publish a flat price; the store quotes by device count and term
Avast One FreeThe strongest free result after Defender99.3%, ADVANCED+5Not in the June 2026 Windows 11 roster cited hereFree tier; paid tiers not published as a static price
Norton AntiVirus PlusA paid single-device product with a top-tier score99.3%, ADVANCED+5Not in the June 2026 Windows 11 roster cited here$59.99 per year at renewal, 1 device (promotional first-year pricing is lower)
Malwarebytes PremiumCleaning up a machine that is already infected98.8%, downgraded to STANDARD39, one of the highest in the testNot in the June 2026 Windows 11 roster cited hereMalwarebytes does not publish a static price on its pricing page

Bitdefender Total Security

Best for
The best all-round result, paid
AV-Comparatives Feb-May 2026
99.5%, ADVANCED+
False alarms
5
AV-TEST Windows 11, June 2026
6/6 protection, 6/6 performance, 6/6 usability
Vendor price (18 Sep 2026)
$59.99 first year, 5 devices; $119.99 two-year renewal

Microsoft Defender

Best for
Free protection that is already installed
AV-Comparatives Feb-May 2026
99.0%, ADVANCED+
False alarms
0, the lowest of any product tested
AV-TEST Windows 11, June 2026
6/6 protection, 5.5/6 performance, 6/6 usability
Vendor price (18 Sep 2026)
Free with Windows

ESET HOME Security

Best for
Low overhead and very few false alarms
AV-Comparatives Feb-May 2026
98.5%, ADVANCED
False alarms
2
AV-TEST Windows 11, June 2026
6/6 protection, 6/6 performance, 6/6 usability (Security Ultimate 19.1)
Vendor price (18 Sep 2026)
ESET does not publish a flat price; the store quotes by device count and term

Avast One Free

Best for
The strongest free result after Defender
AV-Comparatives Feb-May 2026
99.3%, ADVANCED+
False alarms
5
AV-TEST Windows 11, June 2026
Not in the June 2026 Windows 11 roster cited here
Vendor price (18 Sep 2026)
Free tier; paid tiers not published as a static price

Norton AntiVirus Plus

Best for
A paid single-device product with a top-tier score
AV-Comparatives Feb-May 2026
99.3%, ADVANCED+
False alarms
5
AV-TEST Windows 11, June 2026
Not in the June 2026 Windows 11 roster cited here
Vendor price (18 Sep 2026)
$59.99 per year at renewal, 1 device (promotional first-year pricing is lower)

Malwarebytes Premium

Best for
Cleaning up a machine that is already infected
AV-Comparatives Feb-May 2026
98.8%, downgraded to STANDARD
False alarms
39, one of the highest in the test
AV-TEST Windows 11, June 2026
Not in the June 2026 Windows 11 roster cited here
Vendor price (18 Sep 2026)
Malwarebytes does not publish a static price on its pricing page
1

Bitdefender Total Security

Best Overall

Best for: The best independently verified result you can buy, across several devices

“The highest protection rate of any product in this comparison that you can actually buy in the US. It took 99.5% with only 5 false alarms in AV-Comparatives' February to May 2026 Real-World Protection Test, and a clean 6/6/6 from AV-TEST on Windows 11 in June 2026. Bitdefender's own store lists $59.99 for the first year across 5 devices.”

Pros

  • 99.5% protection with 5 false alarms and an ADVANCED+ award in AV-Comparatives' Feb-May 2026 test, second only to Kaspersky, which US buyers cannot legally purchase
  • Perfect 6/6 for protection, performance and usability from AV-TEST on Windows 11 in the June 2026 round, which it also achieved in the April and February rounds
  • One licence covers 5 devices across Windows, macOS, Android and iOS, which is what makes the per-device cost reasonable for a household

Cons

  • The bundled VPN is capped at 200 MB per day on the standard licence, which is enough for a login session and not for browsing
  • Renewal pricing is quoted at $119.99 for two years against a $59.99 first year, so the honest annual cost is closer to $60 than to the introductory number suggests
Honest Weakness: Bitdefender sells the suite on the extras and the extras are mostly not the reason to buy it. The VPN at 200 MB per day is a trial rather than a product, and the password manager is adequate rather than competitive with a dedicated one. What you are actually paying $59.99 a year for is the detection engine, and on that basis it is worth it, because it is the only product here that has posted top-tier results in both labs across three consecutive rounds. If you would not otherwise pay for antivirus, note that Microsoft Defender scored 99.0% with zero false alarms in the same test, and the gap is half a percentage point.

What the lab results actually say

AV-Comparatives ran 20 consumer products against real-world threats from February to May 2026 and gave ADVANCED+, its top award, to seven of them. Bitdefender Total Security took 99.5% with 5 false alarms. Only Kaspersky Premium scored higher at 99.8%, and Kaspersky is prohibited from selling to US persons. AV-TEST's separate Windows 11 home-user testing gave Bitdefender Total Security 27.0 a perfect 6/6 in protection, performance and usability in June 2026, repeating the same result in April and February. Two different labs, three consecutive rounds, consistent outcome. That consistency is the case for Bitdefender, not any individual score.

False alarms are half the number

A protection rate on its own is meaningless, because any product can approach 100% by blocking aggressively enough to make the machine unusable. AV-Comparatives publishes false-alarm counts alongside protection rates and downgrades awards for excessive ones, which is why Malwarebytes landed on STANDARD at 98.8% with 39 false alarms while ESET took ADVANCED at 98.5% with 2. Bitdefender's 5 false alarms sit in the normal band for a top performer, which means the 99.5% was earned rather than bought with over-blocking.

Where the money goes

The suite bundles a capped VPN, a password manager and ransomware remediation. Treat those as incidental. If you want a VPN or a password manager, buy one that is actually good at the job. The detection engine is what justifies the licence, and across 5 devices at $59.99 for the first year it is about $12 per device per year, which is a defensible number for a household that includes people who click things.

$59.99 for the first year covering 5 devices; $119.99 quoted for a two-year renewal. Includes a 200 MB/day VPN and a password manager. Vendor store price read 18 September 2026.

Visit Bitdefender Total Security
2

Microsoft Defender

Best Free Option

Best for: Almost every Windows user, at no cost, with nothing to install

“Free, already running, and it posted 99.0% with zero false alarms in AV-Comparatives' Feb-May 2026 test, taking the ADVANCED+ award. Zero was the lowest false-alarm count of any product in that test. The half-point protection gap to Bitdefender is real but small, and for most people the right decision is to leave Defender on and spend the $60 elsewhere.”

Pros

  • 99.0% protection with zero false alarms and an ADVANCED+ award, meaning it never once blocked legitimate software across the whole test period
  • Free, enabled by default, updated through Windows Update, and with no upsell prompts, no bundled VPN trial and no renewal to forget to cancel
  • Deeply integrated with the operating system, including Controlled Folder Access for ransomware, SmartScreen, and ransomware recovery via OneDrive file history

Cons

  • AV-TEST's June 2026 Windows 11 round gave it 5.5/6 for performance against Bitdefender's and ESET's 6/6, so it is marginally heavier on the system than the best paid options
  • Cross-platform coverage for Macs, Androids and iPhones in the household needs a separate product, which is the strongest argument for a paid multi-device suite
Honest Weakness: Defender's weakness is not detection any more; it is everything around detection. It has no meaningful management for a household, no help when a machine is already badly infected, and no coverage for the non-Windows devices most families now own. Its performance score also wobbles between rounds: 6/6 in February and April 2026, 5.5/6 in June. None of that changes the core conclusion. The days when recommending free Defender was a compromise are over, and a comparison that still frames it as a baseline to be upgraded away from is out of date.

Zero false alarms is the standout number

Across 20 products in the AV-Comparatives Feb-May 2026 Real-World Protection Test, Microsoft Defender was the only one to record no false alarms at all. Every other ADVANCED+ product recorded between 3 and 5. For anyone who compiles code, runs scripts, or installs unsigned software, this is a more useful property than the last half-point of protection rate, because false positives are the thing that makes people disable their antivirus.

Controlled Folder Access

This is the ransomware control most Defender users never switch on. It whitelists which applications may write to your Documents, Pictures and other user folders, and blocks everything else, which stops an encryptor cold even when it has evaded detection. It generates friction the first few times a legitimate application is blocked, and it is worth the friction. Combined with OneDrive file history for recovery, it is a stronger ransomware posture than most paid suites deliver by default.

When Defender is genuinely not enough

Three situations. A machine that is already compromised, where a dedicated remediation tool does a job Defender is not built for. A household with Macs, Android phones and iPads, where one multi-device licence is simply cheaper and simpler than managing four products. And a small business with a handful of endpoints and no administrator, where central visibility matters more than the last half-point of detection. Outside those, the case for paying is weak.

Free, included with Windows 10 and Windows 11

Visit Microsoft Defender
3

ESET HOME Security

Fastest

Best for: Power users who want minimal system impact and almost no false positives

“Two false alarms across the whole AV-Comparatives Feb-May 2026 test, and a 6/6 in all three AV-TEST categories on Windows 11 in June 2026. Its 98.5% protection rate and ADVANCED rather than ADVANCED+ award put it a step below Bitdefender and Defender on raw blocking, and it earns its place on precision and low overhead instead.”

Pros

  • Only 2 false alarms in the Feb-May 2026 AV-Comparatives test, second only to Microsoft Defender's zero, which matters if you run development tools or unsigned software
  • 6/6 for protection, performance and usability from AV-TEST on Windows 11 in June 2026, including a full performance score Defender did not match in that round
  • HIPS rules, a UEFI scanner and device control give genuine configurability for people who want to tune behaviour rather than accept defaults

Cons

  • 98.5% and an ADVANCED award, which is a real step below the seven ADVANCED+ products including free Microsoft Defender at 99.0%
  • ESET does not publish a flat price on its product pages; the store quotes by device count and term, so you cannot compare cost without going through the configurator
Honest Weakness: ESET is a precision instrument sold in a market that buys on headline numbers, and its headline number is not the best here. Free Microsoft Defender out-protected it in the AV-Comparatives Feb-May 2026 round, 99.0% against 98.5%, and also recorded fewer false alarms. ESET's answers are that it is lighter on older hardware, that its AV-TEST performance score was a full 6/6 where Defender's was 5.5/6, and that it is configurable in ways Defender is not. Those are good answers for a specific user. They are not good answers for someone who just wants the machine protected, and that person should not be buying ESET.

Configurability as the actual product

ESET's HIPS lets you write rules about which processes may touch which files and registry keys. Device control governs what may be plugged in. The UEFI scanner checks firmware, which almost nothing else at this price does. These are features for someone who wants to express a policy, not someone who wants a green tick. That is a narrow audience and ESET serves it better than anyone else in this comparison.

The false-positive argument, quantified

Two false alarms across a four-month real-world test is close to the floor. For a developer running unsigned builds, a researcher handling samples, or anyone whose work regularly trips heuristics, that number is worth more than the half-point of protection rate ESET gives up. It is also the single most common reason people turn their antivirus off entirely, at which point protection rate becomes zero.

Naming and product line

ESET restructured its consumer range into HOME Security Essential, Premium and Ultimate, and AV-TEST's June 2026 Windows 11 results are reported against ESET Security Ultimate 19.1. NOD32 Antivirus still exists as a separate, narrower product for Windows and macOS. Older comparisons quoting a flat NOD32 price are describing a line-up that has moved on.

ESET does not display a flat price on its consumer pages. The store configurator quotes by device count (1 to 10) and term across the HOME Security Essential, Premium and Ultimate tiers, and NOD32 Antivirus remains a separate named product. Checked 18 September 2026.

Visit ESET HOME Security
4

Avast One Free

Best Value

Best for: The strongest free protection on a machine that is not running Windows Defender

“99.3% protection with 5 false alarms and an ADVANCED+ award in AV-Comparatives' Feb-May 2026 test, for no money. That is a higher protection rate than free Microsoft Defender, though Defender beat it on false alarms with zero. AVG AntiVirus Free posted identical numbers, which is unsurprising given both are Gen Digital brands running related technology.”

Pros

  • 99.3% and ADVANCED+ in the Feb-May 2026 AV-Comparatives test, the joint-highest free result and above Microsoft Defender's 99.0%
  • Cross-platform, so it covers macOS and Android devices that Windows Defender cannot touch, without buying a licence
  • The free tier is a genuine product rather than a scan-only trial, which is not true of every free antivirus

Cons

  • Free antivirus from a company whose business is upselling means persistent prompts, and Avast's corporate history includes selling browsing data through its Jumpshot subsidiary before that business was shut down
  • 5 false alarms against Microsoft Defender's zero, so on a Windows machine the free product already installed is the cleaner choice
Honest Weakness: Avast sold users' browsing data through a subsidiary called Jumpshot, and that history is the reason to think carefully before installing an Avast product on a machine whose browsing you care about. The company shut Jumpshot down and the detection engine's independently verified results are genuinely excellent, but a free security product still has to be paid for by something, and the mechanism is upsell prompts plus whatever telemetry the privacy policy permits. On Windows, Defender gives you 99.0% with zero false alarms and no business model pointed at you. Avast One Free is the answer when Defender is not available, not when it is.

Free results that beat paid products

The Feb-May 2026 AV-Comparatives results put Avast One Free and AVG AntiVirus Free at 99.3%, ahead of paid products including McAfee Total Protection at 98.5%, ESET HOME Security at 98.5% and Malwarebytes Premium at 98.8%. This is the single most useful thing the lab data tells a consumer: in 2026, protection rate does not correlate with price. The reasons to pay are multi-device management, support, and extras, not detection.

Who owns what

Avast, AVG and Norton are all Gen Digital brands. Their near-identical scores in the same test round (99.3% and 5 false alarms for Avast One Free, AVG AntiVirus Free and Norton AntiVirus Plus alike) are consistent with shared technology. If you are trying to build redundancy by running two vendors, picking two of those three does not give you what you think it gives you.

The Jumpshot history, stated once

Avast operated a subsidiary that packaged and sold user browsing data to commercial buyers. The subsidiary was closed. The engine's lab results are excellent and independently verified. Both facts belong in the same paragraph, and which one weighs more is a judgement about the company rather than about the software.

Free tier available. Avast does not display static prices for its paid Avast One tiers on the product page; pricing is shown in the store flow. Checked 18 September 2026.

Visit Avast One Free
5

Norton AntiVirus Plus

Runner Up

Best for: A single Windows or Mac machine, from a vendor with a top-tier 2026 lab result

“99.3% protection with 5 false alarms and an ADVANCED+ award in the Feb-May 2026 AV-Comparatives test, matching Avast and AVG. The complication is price: Norton's own renewal page lists AntiVirus Plus at $59.99 per year for one device, which is the same money Bitdefender charges for five.”

Pros

  • ADVANCED+ award at 99.3%, placing it in the top seven of twenty products tested and comfortably above several more expensive suites
  • A mature product with real support infrastructure, which matters more to some buyers than the last fraction of a percentage point
  • Norton publishes its full renewal price list openly, which is more transparency than several competitors offer

Cons

  • $59.99 per year at renewal covers one device, against Bitdefender Total Security's five devices for the same annual figure
  • Promotional first-year pricing is substantially lower than renewal pricing, so the cost you sign up at is not the cost you will pay
Honest Weakness: The maths does not work against Bitdefender and it does not work against free. Norton AntiVirus Plus renews at $59.99 for one device. Bitdefender Total Security is $59.99 for the first year across five, with a marginally higher protection rate and perfect AV-TEST scores. Microsoft Defender is free with a 99.0% rate and zero false alarms. Norton's aggressive first-year discounting then steep renewal is also a pattern worth naming: build the reminder to review before renewal on the day you buy, because the price you agreed to is an introductory one.

Reading Norton's price list properly

Norton publishes renewal prices for its whole consumer range, which is unusually transparent, and the numbers are higher than the ones in its advertising. AntiVirus Plus renews at $59.99 for one device, 360 Standard at $94.99 for one, 360 Deluxe at $124.99 for five, and the LifeLock bundles run from $159.99 to $364.99. Compare against renewal prices rather than introductory ones, for every vendor, and most of the consumer antivirus market looks different.

Where it earns a place

The lab result is real and it is top tier. If you are already a Norton customer, or you want a paid single-device product from a large vendor with support you can phone, the Feb-May 2026 numbers say the protection is there. This is not a recommendation against Norton's engine. It is a recommendation to check what five devices would cost you before renewing one.

Gen Digital in context

Norton, Avast and AVG are the same parent company, and all three posted 99.3% with 5 false alarms in the same test round. That is useful for understanding why their results look alike, and it is a reason not to treat a switch between them as a meaningful change of vendor.

$59.99 per year at renewal for 1 device, per Norton's published renewal price list. Norton 360 Deluxe renews at $124.99 for 5 devices, Norton 360 Standard at $94.99 for 1. Promotional first-year prices are lower. Vendor page read 18 September 2026.

Visit Norton AntiVirus Plus
6

Malwarebytes Premium

Honorable Mention

Best for: Cleaning a machine that is already infected, rather than running permanently

“Malwarebytes remains the tool to reach for when something is already on the machine and the resident antivirus missed it. As a permanent resident product, the Feb-May 2026 AV-Comparatives data is a problem: 98.8% protection, but 39 false alarms, which pushed it down to a STANDARD award while ESET took ADVANCED at a lower protection rate with 2.”

Pros

  • Genuinely good at remediation, which is a different discipline from prevention and the reason the product built its reputation
  • The free scanner is still one of the most useful things to have on a USB stick, and it runs alongside another antivirus for a second opinion
  • Browser Guard blocks malicious and scam sites at the browser level, which catches a class of threat file scanning does not

Cons

  • 39 false alarms in the AV-Comparatives Feb-May 2026 test, one of the highest counts recorded, which downgraded it from what its 98.8% protection rate would otherwise have earned
  • Malwarebytes does not publish a static price on its pricing page, so the cost cannot be compared without entering the purchase flow
Honest Weakness: Thirty-nine false alarms is the number that decides this entry. AV-Comparatives downgrades awards for excessive false positives precisely because a product that keeps blocking legitimate software teaches its user to click through warnings, and a user who clicks through warnings has no antivirus at all. Malwarebytes' 98.8% protection rate was better than ESET's 98.5%, and it still finished two award tiers lower. The product's real value is unchanged and it is remediation: keep the free scanner available, run it when something feels wrong, and let Defender or Bitdefender handle the permanent watch.

Remediation is a different job from prevention

Prevention stops a threat before execution. Remediation removes one that has already run, persisted and possibly disabled your security software. They call for different engineering, and Malwarebytes has always been better at the second. That is why the standard advice is to keep the free scanner on hand rather than to make Premium your resident product, and the 2026 false-alarm data supports rather than contradicts that advice.

Running it alongside another antivirus

Two real-time engines on one machine usually causes conflicts, because both try to intercept the same file operations. Malwarebytes is the common exception, and it is designed to coexist with another product. The safe configuration is one resident antivirus of your choice plus Malwarebytes used on demand for scanning. If you do want both resident, register each as an exclusion in the other.

Consumer and business are now separate

Malwarebytes split its business line into a separate brand, ThreatDown, while the consumer product kept the Malwarebytes name. If you are evaluating for a small business, you are looking at a different product with different pricing and a different console, and consumer reviews of Malwarebytes Premium do not describe it.

Malwarebytes lists Standard, Plus and Ultimate consumer tiers but does not render a static price on its pricing page; the figure is shown in the purchase flow and varies by promotion. The free scanner remains free. Checked 18 September 2026.

Visit Malwarebytes Premium

Which One Should You Pick?

Use CaseOur Recommendation
Windows user who does not want to pay anythingLeave Microsoft Defender on and switch on Controlled Folder Access. It scored 99.0% with zero false alarms and an ADVANCED+ award in AV-Comparatives' Feb-May 2026 test, the only product in twenty to record no false positives. This is no longer a compromise recommendation.
Household with Windows PCs, Macs, Androids and iPadsBitdefender Total Security at $59.99 for the first year across 5 devices. This is the case where paying genuinely wins, because Defender cannot cover the non-Windows devices and buying four separate products costs more than one licence.
A machine that is already infectedMalwarebytes free scanner, run on demand, which is what the product is actually best at. Do not make it the permanent resident product: it recorded 39 false alarms in the Feb-May 2026 test and was downgraded to STANDARD as a result.
Developer or power user running unsigned builds and scriptsMicrosoft Defender (0 false alarms) or ESET HOME Security (2 false alarms) in the Feb-May 2026 test. False positives are the reason people disable their antivirus, and a disabled antivirus protects nothing. Avoid Malwarebytes and Trend Micro as resident products on this kind of machine.
You were about to buy Kaspersky because it tops the chartsYou cannot, if you are in the US. Kaspersky Premium did post the highest score in the Feb-May 2026 test at 99.8%. The US Commerce Department prohibited Kaspersky from selling to US persons in June 2024, updates ended on 29 September 2024, and roughly a million US customers were transferred to Pango's UltraAV. Buy Bitdefender at 99.5% instead.
Small business with 10 to 50 endpointsNone of the consumer products on this page. You need central management, policy enforcement and visibility, which means a business-tier product: Bitdefender GravityZone, ESET PROTECT or Malwarebytes' business brand ThreatDown. Consumer licences do not cover commercial use and give an administrator nothing to administer.

How we evaluated

This comparison is built on published third-party lab results, not on vendor claims. Where a vendor asserts a capability that no lab has measured, the entry says so, and where a vendor's product does not appear in the lab rosters at all, it is not ranked.

Two test bodies carry the weight:

  • AV-Comparatives Real-World Protection Test, February to May 2026. Twenty consumer products run against live malicious URLs on Windows 11. Reports a protection percentage plus a false-alarm count, then awards ADVANCED+, ADVANCED, STANDARD or TESTED, with downgrades for excessive false positives. Seven products took ADVANCED+ in this round. A more recent factsheet covering July and August 2026 lists the same twenty products but does not publish per-product figures in the public text, so this page cites the February to May results, which do.
  • AV-TEST Windows 11 home-user testing, June 2026, with the April and February 2026 rounds used to check consistency. Scores out of 6 in three separate categories: protection, performance (system slowdown) and usability (false positives).

Reading both is deliberate. AV-TEST is the better guide to system impact; AV-Comparatives is the better guide to over-blocking. A product that performs in both across consecutive rounds is a safer bet than one that spikes once.

Pricing

Every price was read off the vendor's own page on 18 September 2026:

  • Bitdefender: $59.99 for the first year across 5 devices, $119.99 quoted for a two-year renewal, with a 200 MB/day VPN and a password manager, from the Total Security page.
  • Norton: the published renewal price list, which is where the real annual cost lives. AntiVirus Plus renews at $59.99 for 1 device; 360 Deluxe at $124.99 for 5.
  • Microsoft Defender: free, included with Windows.
  • ESET, Avast and Malwarebytes do not render a static price on their product or pricing pages; each quotes inside a store or configurator flow that varies by device count, term, region and promotion. This page says that rather than quoting a number from a third-party site, because a price this comparison has not read from the seller does not belong on it.

What we did not do

No hands-on testing. No product on this page was installed, benchmarked or run against a malware sample set for this comparison. That work is what AV-TEST and AV-Comparatives exist to do, they do it with a methodology published for scrutiny, and citing them is more useful than an unrepeatable desk test would be. Every protection figure, false-alarm count and award here traces to one of the two reports named above.

No vendor input. No vendor reviewed this page, supplied figures for it, or has a commercial relationship with it.

No ranking of products without published lab results. This is why Surfshark Antivirus was removed rather than re-rated.

Ownership changes worth knowing

  • Norton, Avast and AVG are all Gen Digital brands, which explains why all three posted 99.3% with 5 false alarms in the same round. Switching between them is not a change of vendor.
  • Malwarebytes split its business line into a separate brand, ThreatDown, while the consumer product kept the Malwarebytes name.
  • Kaspersky's US consumer base was transferred to Pango Group's UltraAV following the June 2024 Commerce Department prohibition.
  • Surfshark is a Nord Security brand following the 2022 merger.
Note

Editorial independence: this is a vendor-neutral comparison with no paid placements, sponsorships or affiliate links. Rankings reflect fit for the stated use cases, not commercial relationships.

Last verified: 18 September 2026. AV-Comparatives Feb-May 2026 results, AV-TEST June, April and February 2026 Windows 11 rounds, vendor pricing pages, and vendor ownership and product-line changes were all rechecked on this date.

Frequently Asked Questions

Which antivirus scored best in independent testing in 2026?
In AV-Comparatives' Real-World Protection Test covering February to May 2026, twenty consumer products were tested and seven received the top ADVANCED+ award. Kaspersky Premium led at 99.8% with 3 false alarms, followed by Bitdefender Total Security at 99.5% with 5. Avast One Free, AVG AntiVirus Free and Norton AntiVirus Plus all took 99.3% with 5. Microsoft Defender took 99.0% with zero false alarms, and TotalAV Premium 99.0% with 5. In AV-TEST's separate Windows 11 home-user testing in June 2026, Bitdefender Total Security 27.0 and ESET Security Ultimate 19.1 both took a perfect 6/6 for protection, performance and usability, while Microsoft Defender took 6/6 for protection and usability and 5.5/6 for performance.
Why does a product with a higher protection rate get a lower award?
Because false alarms count. AV-Comparatives publishes a false-alarm figure alongside every protection rate and downgrades awards when it is excessive, since a product that blocks legitimate software trains its user to dismiss warnings. The Feb-May 2026 results show this clearly: Malwarebytes Premium protected at 98.8% but recorded 39 false alarms and finished on STANDARD, while ESET HOME Security protected at a lower 98.5% with only 2 false alarms and finished on ADVANCED. Trend Micro protected at 98.3% with 83 false alarms and was rated only TESTED. Any comparison that quotes protection rates without false-alarm counts is showing you half the result.
Can I still buy Kaspersky in the United States?
No. The US Commerce Department's Bureau of Industry and Security prohibited Kaspersky from providing antivirus products or services in the US or to US persons in June 2024, on national security grounds. Kaspersky was permitted to supply signature and codebase updates until 29 September 2024, after which roughly a million US antivirus customers were transferred to Pango Group's UltraAV product. This matters for reading lab results, because Kaspersky continues to post the highest scores in European testing and remains an unbuyable recommendation for US readers. If you still have Kaspersky installed on a US machine, it is not receiving updates and should be replaced.
What is the difference between AV-TEST and AV-Comparatives?
They test different things and both are worth reading. AV-TEST, based in Germany, scores products out of 6 in three separate categories: protection, performance (system slowdown) and usability (false positives), running on Windows 11 for home users in rounds every two months. AV-Comparatives, based in Austria, runs a Real-World Protection Test against live malicious URLs and reports a single protection percentage plus a false-alarm count, then assigns ADVANCED+, ADVANCED, STANDARD or TESTED. AV-TEST gives you a clearer picture of system impact; AV-Comparatives gives you a clearer picture of how aggressively a product over-blocks. A product that does well in both across consecutive rounds, which in 2026 means Bitdefender, is a safer bet than one that spikes in a single test.
Do I still need paid antivirus in 2026?
On a Windows machine, usually not. Microsoft Defender posted 99.0% protection with zero false alarms in the Feb-May 2026 AV-Comparatives test and 6/6 for protection from AV-TEST in June 2026, which is a better result than several paid products including McAfee, ESET and Malwarebytes on protection rate. The real reasons to pay are not detection: they are covering Macs, Android phones and iPads that Defender cannot reach, getting one licence and one console for a household, and having support to call. If those do not apply to you, the honest answer is to leave Defender on, enable Controlled Folder Access, keep backups, and spend the money on a password manager or a hardware security key instead.
Which antivirus vendors have changed hands or changed shape recently?
Several, and it affects what you are actually buying. Norton, Avast and AVG are all Gen Digital brands, which explains their near-identical 99.3% scores in the same 2026 test round and means switching between them is not a change of vendor. Malwarebytes split its business line into a separate brand called ThreatDown while the consumer product kept the Malwarebytes name, so business and consumer reviews are now describing different products. Kaspersky's US consumer base was transferred to Pango Group's UltraAV following the 2024 prohibition. Surfshark Antivirus, which appeared in an earlier version of this comparison, is a Nord Security brand following the 2022 merger and does not appear in the AV-Comparatives or AV-TEST consumer rosters, which is why it has been removed rather than ranked.

About the author

is the founder and creator of LoginRadius, a customer identity platform he built and scaled to over a billion users. He is now the founder of GrackerAI, a GEO platform for B2B SaaS and cybersecurity teams, and has spent more than 15 years building identity and security products.

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