Here is the Only Free Antivirus You’ll Ever Need

Bitdefender Antivirus Free for Windows is free to use and packs essential protection features every Windows computer needs.

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  • Downloads and installs in seconds
  • Intuitive User Interface
  • Good for gaming, offers a great gameplay experience
  • Powerful antivirus protection for free

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Get award-winning antivirus protection for Windows

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Bitdefender Antivirus Plus
1 account / billed annually
Save $5300

for the first year

Plus applicable sales tax.

See Terms of Use.

Bitdefender Antivirus Free

Bitdefender Antivirus Plus

Old Price $
Savings $

Your total price:

$ for the first year.

Plus applicable sales tax.

See Terms of Use below.

Antivirus
Antivirus

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OnAccess Scan

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OnDemand Scan

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Windows Rescue Environment

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Online Threat Prevention
Online Threat Prevention

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Web protection

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Network threat prevention

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Ransomware Remediation
Ransomware Remediation

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Vulnerability Assessment
Vulnerability Assessment

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Vulnerability Scan

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Wifi Security

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Safepay
Safepay

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AntiTracker
AntiTracker

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VPN
VPN

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Profiles
Profiles

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File shredder
File shredder

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Get Bitdefender Small Office Security

Start using your 30-day free trial by creating a new Bitdefender account.

30-day free trial works only on newly created accounts. If you already have a Bitdefender account with another security solution, you won’t be able to activate on that account.

Thank you for downloading Premium Security

If the download doesn’t start automatically, please click here to download your trial. After the download has finished you can find the installer in your browser’s Downloads folder.

Get Started with Bitdefender in 3 easy steps:

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1.Double-click the downloaded Bitdefender file and the installer will start immediately.
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2.Sign in to activate your Bitdefender protection
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3.Enjoy the peace of mind of being protected by Bitdefender.

Latest Threats

Malicious software is designed to damage, destroy, or exploit devices, services or network infrastructure, leading to financial loss.

Phishing

You're continuously exposed to phishing websites that can steal your credit card info when shopping online.

Exploits

Exploits usually take advantage of a security flaw or vulnerability in an operating system, typically for malicious purposes, such as installing malware.

Online Scams & Frauds

Scam websites are designed by hackers to steal your sensitive financial data.

When you write your personal information into a sign-up form that mimics a legitimate website, the data is in the wrong hands.

Cryptojacking

Cybercriminals use this form of malware that hides on your device and steals its computing resources to mine for valuable cryptocurrencies like Bitcoin, degrading device hardware.

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Bitdefender Antivirus Free for Windows. Basic protection against e-threats.

Virus Scanning and Removal

Powerful scan engines ensure real-time detection and removal of all malware, from viruses, worms and Trojans, to ransomware, zero-day exploits, rootkits and spyware.

Real-time Threat Detection

Bitdefender Antivirus Free for Windows uses behavioral detection to closely monitor your active apps. When it detects anything suspicious, it takes instant action.

Antivirus Protection

Keeps your device safe from e-threats  

Behavioral App Detection

Monitors apps behavior and instantly takes actions in event of suspicious activity

Exploit Detection

Identifies exploits that might compromise your system and blocks any apps that could use them to their advantage

Data Protection

Detects & blocks websites that masquerade as trustworthy so they can steal sensitive data such as passwords or login credentials.

Fraud Prevention

Uncovers scam attempts when browsing and warns you to steer away from shady websites.

System Requirements

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  • Windows
  • macOS
  • iOS
  • Android
  • Standard
  • Premium

Bitdefender Antivirus Free for Windows

SYSTEM REQUIREMENTS

Operating System: Windows 7 with Service Pack 1, Windows 8.1, Windows 10 and Windows 11

Memory (RAM): 2 GB

Available free hard disk space: 2.5 GB free space

*System performance may be affected on devices with old-generation CPUs

SOFTWARE REQUIREMENTS

Internet Explorer version 11

How do I switch from the previous free product to the new Bitdefender Antivirus Free for Windows?

You can easily install the new Bitdefender Antivirus Free for Windows. Download and run the installation file, as the installation process will be seamless. Don’t worry, we will guide you through every step. 

How does Bitdefender Antivirus Free for Windows protect me against viruses and cyber threats?

Bitdefender Antivirus Free for Windows uses the same Bitdefender technologies considered the best in the industry, as proven by the last decade of independent test scores.

Easy to install and use, Bitdefender Antivirus Free reacts instantly to cyber threats with no compromise to your computer’s performance.

What type of devices and operating systems does Bitdefender Antivirus Free cover?

Bitdefender Antivirus Free is a free antivirus software especially designed to protect your Windows PC. Quick to install and light on computer resources, it is good for gaming, image and video editing, and resource-intensive applications.

Why do I need Bitdefender Antivirus Free on Windows 11?

Windows 11 lets you run the antivirus program of your choosing, and Bitdefender Antivirus Free for Windows is the perfectly optimized option if you need a powerful antivirus software loaded only with the bare-bones protection features that every computer needs.

How does Bitdefender Antivirus Free for Windows compare to other Bitdefender security products?

Bitdefender Antivirus Free for Windows is a free antivirus software especially designed to protect Windows computers.

Need protection on more operating systems? Bitdefender Total Security offers cross-platform protection that covers Windows PCs, Macs, smartphones and tablets running Android or iOS for up to 10 devices. Bitdefender Total Security also includes a basic VPN with up to 200 MB per day of encrypted traffic for your devices.

Need unlimited VPN traffic? Bitdefender Premium Security includes Bitdefender Total Security, Bitdefender Premium VPN for Unlimited Traffic & Premium Support.

Do I get a VPN with my Bitdefender Antivirus Free download?

No, Bitdefender Antivirus Free for Windows does not include the VPN service that comes with other Bitdefender products.

If you need a secure VPN, Bitdefender Total Security comes with a basic version of Bitdefender VPN that includes a generous amount of traffic (6 GB monthly), free of charge.

If you need unlimited traffic, add Bitdefender Premium VPN to your Bitdefender subscription.

I changed my computer. How do I reinstall Bitdefender Antivirus Free?

Log in to your Bitdefender Central account, go to My Devices and start installing Bitdefender on your new device.

Didn't find what you were looking for?

Log in to your Bitdefender account at Bitdefender Central to find out more about your Bitdefender products (video tutorials included).

Helpful articles are also available in Bitdefender Support Center.

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Bitdefender Central

Security Everywhere You Go

All you need to know about Bitdefender Central

  • Activate Bitdefender protection on your devices
  • Manage from your browser on iOS or Android phone
  • Scan your network from Bitdefender Central mobile app
  • Get security updates 24/7
  • Get direct access to our support team
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Download the Mobile App

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