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Product

Free antivirus software for Windows PCs from Bitdefender for individual users, providing virus detection and removal without cost or time limits. Bitdefender Antivirus Free for Windows is a free antivirus software especially designed to protect Windows computers. Free antivirus software is a great first line of defense, but when it comes to protecting your digital assets and online presence, sometimes you need a little more firepower. Bitdefender Antivirus Free offers top-notch protection for your Windows PC without any hidden costs or time limits. It runs on Windows.

Current Version
27.0.64.366
Market
Consumer
Licence
Free
Price
Free
Record Created
2026-08-20
Last Updated
2026-10-25

Vendor

Bitdefender was founded in 2001 in Bucharest by Florin Talpeș, who still runs it, and grew out of SOFTWIN, the Romanian software firm he had started a decade earlier. It is privately held, its main research centre is still in Bucharest, and its North American operation is in San Antonio, Texas. The company says more than half its staff work in research and development and that it has filed over 580 patents. Home users buy Bitdefender Antivirus Plus, Bitdefender Internet Security, Bitdefender Total Security, Bitdefender Premium Security and Bitdefender Ultimate Security, with Bitdefender Antivirus for Mac, Bitdefender Mobile Security and a free edition beside them. Organisations buy Bitdefender GravityZone, which spans endpoint protection, XDR and a managed detection service. One thing matters when comparing scores across this index: Bitdefender licenses its detection engine to other security companies, so several products listed here under other names are running its engine underneath. Their laboratory results tend to move together rather than independently, which is worth knowing before reading two such scores as two opinions. Vendor page →

Country
Romania
Headquarters
Bucharest, Romania
Year Established
2001
Customers
40K organisations
Users
500M devices protected
Revenue
≈ $363.0M (2024)

Platforms

Androidnot supported
iOSnot supported
Windowsnative

Target Market

Consumer primary

Capabilities

Malware Detectionkeynative
Ransomware Protectionkeynative
Behavioral Detectionkeynative
Web Protectionkeynative
Email ProtectionNot known
Host FirewallNot known
Sandbox AnalysisNot known
Cloud-Assisted Scanningnative
Heuristic DetectionNot known
Device ControlNot known
Vulnerability ShieldingNot known
Central Management ConsoleNot known

7 of 12 not yet known — not recorded, which is not the same as not supported.

Pricing

PlanLicencePriced perBilledPrice
Bitdefender Antivirus FreeFreenot statedno recurring chargeFree
SummaryFreenot statedno recurring chargeFree

Versions

  • 27.0.64.366Windowsreleased 2026-10-19

The newest release each source names per platform, not every release the vendor has shipped. A release date is shown only where one is recorded.

Independent Tests

Not tested This product does not appear in any test run CSI holds. That is not a low score.

Certifications

OESIS Framework SupportSupported1 activeSupported
OPSWAT Certified Security ApplicationGold1 activeGold

Change History

This record was created 2026-08-20. Everything below is what has changed since.

  • 2026-10-25New versionNew version: 27.0.64.366 (Windows)evidence
  • 2026-10-01Pricing plan addedPrice: Bitdefender Antivirus Free — freeevidence
  • 2026-09-23New versionNew version: 27.0.62.355 (Windows)evidence
  • 2026-09-23Certification addedCertified: OPSWAT Certified Security Application (Gold)evidence
  • 2026-09-23Capability addedCloud-Assisted Scanning: built inevidence
  • 2026-09-23Capability addedBehavioral Detection: built inevidence
  • 2026-09-23Capability addedWeb Protection: built inevidence
  • 2026-09-23Capability addedRansomware Protection: built inevidence
  • 2026-09-22Product updatedListed in Free Antimalwareevidence
  • 2026-09-22Product updatedListed in Home Antimalwareevidence
  • 2026-09-19Platform addedNot available for iOSevidence
  • 2026-09-19Platform addedNot available for Androidevidence
  • 2026-09-19Product updatedNo longer sold to: Mid-Marketevidence
  • 2026-09-19Product updatedNo longer sold to: Enterpriseevidence
  • 2026-09-19Pricing plan addedPrice: freeevidence
  • 2026-09-09New versionNew version: 27.0.59.334 (Windows)evidence
  • 2026-08-30Product updatedSold to: Mid-Marketevidence
  • 2026-08-30Product updatedSold to: Consumerevidence
  • 2026-08-30Platform addedRuns on iOSevidence
  • 2026-08-30Platform addedRuns on Androidevidence
  • 2026-08-20Certification addedCertified: OESIS Framework Support (Supported)evidence
  • 2026-08-20Capability addedMalware Detection: built inevidence
  • 2026-08-20Pricing plan addedPrice: paidevidence
  • 2026-08-20Product updatedSold to: Enterpriseevidence
  • 2026-08-20New versionNew version: 27.0.59.334evidence
  • 2026-08-20Platform addedRuns on Windowsevidence
  • 2026-08-20Product createdNew product listedevidence

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