saasrankedSoftware, ranked on the facts

Security & Privacy

Best antivirus software

Block malware and phishing on a Windows PC with little slowdown and few false alarms. 10 antivirus products, ranked by points out of 100.

Facts checked 8 Oct 2026 · How we score antivirus products

In short

  1. 1
    BitdefenderPeople who want a capable free edition or a cheap first year
    94/100
    $24.99/yrfirst-year price
  2. 2
    Microsoft Defender AntivirusWindows users who want protection without buying anything
    88/100
    $0first-year price
  3. 3
    KasperskyBuyers outside the United States who want a firewall in the cheapest plan
    84/100
    $49.99/yrfirst-year price
  4. 4
    AvastPeople who want a free Windows antivirus with real-time protection
    83/100
    $49.08/yrfirst-year price
  5. 5
    NortonPeople who want a firewall and cloud backup in one paid app
    77/100
    $29.99/yrfirst-year price
  6. 6
    ESETPeople who want a light paid antivirus for Windows or Mac
    65/100
    $39.99/yrfirst-year price
  7. 7
    F-SecurePeople who want a yearly price that does not jump at renewal
    64/100
    $49.99/yrfirst-year price
  8. 8
    MalwarebytesPeople who want a free cleanup scanner and a simple paid upgrade
    61/100
    $35.99/yrfirst-year price
  9. 9
    TotalAVHouseholds that want one plan covering several devices
    59/100
    $110.74/yrfirst-year price
  10. 10
    AviraPeople who want free real-time protection with a cheap paid upgrade
    57/100
    $26.99/yrfirst-year price

How the points add up

Points earned out of the points available in each part of the method.

ProductIndependent lab results
of 45
Protection features
of 25
Price
of 20
Refunds and security
of 10
Total
Bitdefender4525141094
Microsoft Defender Antivirus382520588
Kaspersky452541084
Avast412512583
Norton412110577
ESET321941065
F-Secure321661064
Malwarebytes27218561
TotalAV38160559
Avira152116557

Each antivirus product in brief

1. Bitdefender

Bitdefender suits people who want a capable free edition or a cheap first year on one PC. Antivirus Plus adds ransomware protection, anti-phishing and a rescue mode for $24.99 in the first year. The catch is that the renewal price is not shown, and the firewall only comes with Total Security.

Best for: People who want a capable free edition or a cheap first year. Prices, facts and sources

2. Microsoft Defender Antivirus

Microsoft Defender suits anyone with a Windows PC who wants solid protection without buying anything. Windows Security adds a firewall, controlled folder access and an offline scan, all built in. The catch is that SmartScreen's website checks are documented for Microsoft Edge, and the apps for other systems need a Microsoft 365 subscription.

Best for: Windows users who want protection without buying anything. Prices, facts and sources

3. Kaspersky

Kaspersky is only an option outside the United States, where a 2024 Commerce Department ruling bars its sale. Elsewhere, Standard includes a firewall, anti-ransomware and anti-phishing for $49.99 in the first year, plus a free Rescue Disk. The catch is that there is no lasting free edition, and Standard renews at $64.99.

Best for: Buyers outside the United States who want a firewall in the cheapest plan. Prices, facts and sources

4. Avast

Avast suits people who want a free Windows antivirus with real-time protection. Premium Security adds a firewall, ransomware protection and a rescue disk for $49.08 in the first year. The catch is the $77.99 renewal and the 2024 FTC order over selling users' browsing data.

Best for: People who want a free Windows antivirus with real-time protection. Prices, facts and sources

5. Norton

Norton suits people who want a firewall, ransomware protection and cloud backup in one paid app. AntiVirus Plus costs $29.99 in the first year and comes with a 60-day refund window. The catch is that the price doubles to $59.99 at renewal, and there is no free edition.

Best for: People who want a firewall and cloud backup in one paid app. Prices, facts and sources

6. ESET

ESET suits people who want a light paid antivirus for Windows or Mac. NOD32 Antivirus costs $39.99 a year with anti-phishing, and HOME Security Essential adds a firewall for $49.99. The catch is that there is no free edition, no iOS app and no rescue disk since 2023.

Best for: People who want a light paid antivirus for Windows or Mac. Prices, facts and sources

7. F-Secure

F-Secure suits people who want a plain yearly price: Internet Security costs $49.99 for one device and renews at the same rate. The company holds an ISO/IEC 27001 certificate. The catch is that there is no free edition, and no firewall is listed for Windows.

Best for: People who want a yearly price that does not jump at renewal. Prices, facts and sources

8. Malwarebytes

Malwarebytes suits people who want one paid plan across Windows, Mac, Android and iOS. Standard costs $35.99 for three devices in the first year, and new buyers get 60 days to ask for a refund. The catch is that the free version has no real-time protection, and Standard renews at $59.99 a year.

Best for: People who want a free cleanup scanner and a simple paid upgrade. Prices, facts and sources

9. TotalAV

TotalAV suits households that want one subscription for several devices: Total AV Plus covers four for $99 a year at the renewal rate. It includes real-time antivirus, ransomware protection and phishing protection. The catch is that TotalAV publishes no firewall for Windows and does not say what its free download includes.

Best for: Households that want one plan covering several devices. Prices, facts and sources

10. Avira

Avira suits people who want real-time protection for free, with a low-cost upgrade when they need more. Antivirus Pro costs $26.99 for the first year and adds a firewall and web protection, and annual plans have a 60-day refund window. The catch is the renewal: Antivirus Pro goes to $64.99 a year after the first year.

Best for: People who want free real-time protection with a cheap paid upgrade. Prices, facts and sources

Every fact, side by side

Each row is one rule of the method and the points it is worth. "–" means the vendor does not publish it, which earns nothing.

Rule (points)BitdefenderMicrosoft Defender AntivirusKasperskyAvastNortonESETF-SecureMalwarebytesTotalAVAvira
AV-TEST score (15)18 of 1817.5 of 1818 of 1818 of 1818 of 1818 of 1818 of 1818 of 1817.5 of 1818 of 18
AV-Comparatives award (15)ADVANCED+ADVANCED+ADVANCED+ADVANCED+ADVANCED+ADVANCEDADVANCEDSTANDARDADVANCED+–
AV-Comparatives protection rate (15)99.5%99%99.8%99.3%99.3%98.5%98.8%98.8%99%–
Systems covered (8)4 of 44 of 44 of 44 of 44 of 43 of 44 of 44 of 44 of 44 of 4
Firewall (5)YesYesYesYesYesYes–Yes–Yes
Ransomware protection (5)YesYesYesYesYesYesYesYesYesYes
Rescue or offline scan (4)YesYesYesYes–No––––
Browser protection (3)YesYesYesYesYesYesYesYesYesYes
Free edition with real-time protection (8)YesYesNoYesNoNoNoNo–Yes
First-year price (6)$24.99/yr$0$49.99/yr$49.08/yr$29.99/yr$39.99/yr$49.99/yr$35.99/yr$110.74/yr$26.99/yr
Price from the second year (6)–$0$64.99/yr$77.99/yr$59.99/yr–$49.99/yr$59.99/yr$99/yr$64.99/yr
30-day refund (5)Yes–YesYesYesYesYesYesYesYes
SOC 2 Type II or ISO 27001 (5)YesYesYes––YesYes–––

Head to head

We read each vendor's own pages and the latest AV-TEST and AV-Comparatives results, record every fact with its source and date, and score it by the rules on how we score antivirus products. A tie goes to the lower price. Antivirus suites for home Windows PCs that independent labs test. Business endpoint products are left out. Vendor claims about speed or quality are shown on product pages but never scored. Prices are in US dollars before tax.