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Lightning-fast free antivirus

Bitdefender Antivirus Free Edition is blazing fast, free to use, and packs essential protection features every Windows computer needs.

  • Downloads and installs in seconds, runs at max speed without slowing down your PC
  • Good for gaming, image and video editing, and resource-intensive applications
  • Powerful antivirus protection packed into a light solution

How Bitdefender compares to other cybersecurity brands

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Best Protection Against Infections

Best Protection Against Infections

(On a scale of 0 to 6 and 6 being the highest protection)

Bitdefender

5.94

Kaspersky

5.91

Norton

5.85

McAfee

5.25

Overall Score. January 2011 - June 2021. AV TEST.

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Lowest Impact on Performance

Lowest Impact on Performance

(On a scale of 0 to 6 and 6 being the lowest impact)

Bitdefender

5.81

Kaspersky

5.80

Norton

5.49

McAfee

5.36

Overall Score. January 2013 - June 2021. AV TEST.

Bitdefender. Choose what the experts use.

You get the most innovative technologies that predict, prevent, detect and remediate even the latest cyber-threats, anywhere in the world.

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Powered by award-winning technology

Real-time Threat Detection

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

Virus Scanning and Malware 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.

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A powerful silent guardian for your Windows PC

Bitdefender Antivirus Free Edition is an antivirus that always has your back. It uses a minimalistic approach to defend your Windows computer against all cyber threats, whether you are a tech pro or not.

  • On-demand & on-access virus scanning that runs in the background
  • Essential antivirus protection for personal and gaming computers
  • No time-consuming scans, no sudden lag, no ads out of the blue
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Free Protection Against Internet Fraud

Anti-phishing

How can you keep your passwords safe and still browse freely? It’s easy: Bitdefender Antivirus Free Edition sniffs and blocks by default phishing websites that pretend to be trustworthy in order to steal your data.

Anti-Fraud

If you ever land on scam websites, our advanced filtering system detects suspicious web page behavior and prevents your sensitive financial data from falling into the hands of hackers.

Compare Bitdefender Products

Compare our award-winning products and get the best real-world protection.

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Bitdefender Antivirus Free Edition

1 Devices

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Bitdefender Antivirus Plus

3 Devices

Old Price $
Savings $

Your total price:

$ for the first year.

Plus applicable sales tax. See Terms of Use

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Bitdefender Total Security

5 Devices

Old Price $
Savings $

Your total price:

$ for the first year.

Plus applicable sales tax. See Terms of Use

Windows Protection
Windows Protection

Top-notch protection and uncompromising speed for Windows.

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Complete Real-Time Data Protection

Absolute power in the most efficient anti-malware solution available today. Automatic protection that goes beyond antivirus.
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Advanced Threat Defense

Our improved behavior-based technology detects and blocks advanced threats and ransomware.
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Web attack prevention

Our web filtering technology ensures that you never land on a harmful website.
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Anti-Phishing & Anti-Fraud

Prevents phishing or online fraud when you shop, bank, or browse.
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Bitdefender Photon™

This innovative, exclusive technology helps Bitdefender adapt to the hardware and software configuration of your system to save computing resources and improve speed and performance.
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Global Protective Network

Most heavy scanning takes place in the cloud, this means your system’s speed and performance remain unaffected. Your files remain completely private: Bitdefender does not scan the actual contents of your files, and never uploads or stores them in the cloud.
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Network Threat Prevention

The new cyber threat intelligence technologies included can analyze and identify suspicious network-level activities, and block sophisticated exploits, malware or botnet-related URLs, and brute force attacks.
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Multi-Layer Ransomware Protection

Multiple layers of ransomware protection keep your files safe from encryption.
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Vulnerability Assessment

Scan for security holes and vulnerabilities with just one click.
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Rescue Environment

Some sophisticated viruses, like rootkits, need to be removed before Windows starts. When Bitdefender detects such threats, it reboots the computer in Rescue Environment for clean-up and restoration.
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Autopilot

Our latest Autopilot is designed to act as a Security Advisor and to give you deeper insights into your security posture. Its smart capabilities mean that it can recommend security actions in the context of your system needs and usage patterns.
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Game, Movie & Work Modes

Bitdefender detects when you play, work or watch a movie, so it knows not to bother you with unnecessary requests. It temporarily halts pop-ups, adjusts visual settings, and pauses unimportant background activities to allow you to enjoy your device to the max.
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Battery Mode

This useful, intelligent feature saves battery life for laptops and tablets by temporarily tweaking system settings such as display, system cooling, system updates and Bluetooth connectivity.
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Bitdefender VPN

Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
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Anti-tracker

Keeps your browsing private and allows you to manage trackers that collect your data.
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Safe Online Banking

Bank and shop with Safepay, our unique, dedicated browser that secures your transactions.
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Wi-Fi Security Advisor

Access your Wi-Fi network and router security, no matter where you connect from.
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Social Network Protection

Stay safe from malicious links and any online threats your friends unwittingly pass on to you via social networks.
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Password Manager

Secures your passwords, credit card information, and other sensitive data in a cyber-vault for easy access whenever you need them.
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File Shredder

Delete a file for good and leave no traces that it ever existed on your PC.
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Microphone Monitor

Helps you regain control over your own devices. Use it and you’ll be able to see what apps have access to your device’s microphone and when.
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Webcam Protection

Notifies you when apps try to access your webcam, and lets you block unauthorized access.
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Antispam

Filters irrelevant messages in your Inbox. It’s available for local email clients (Microsoft Outlook, Thunderbird).
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Parental Control

Offers digital help to parents and extra online safety to children. Log in remotely to Bitdefender Central to keep up with them.
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Privacy Firewall

Blocks intrusions and filter your network traffic.
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Speed Up Your Devices

Improves speed and performance for your devices with OneClick Optimizer.
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Anti-Theft

Packs effective anti-loss and anti-theft tools and it is remotely accessible.
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macOS Protection
macOS Protection

Absolute protection, designed for your Mac.

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Safe Files

Prevents unauthorized changes to your most important files.
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Time Machine Protection

With this complex feature, you can restore the files from your Mac without having to pay ransom. Time Machine Protection gives you the edge against malware that may attempt to encrypt or destroy your backups.
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Adware Blocker

Free your Mac from adware, hijacker programs, unwanted toolbars, and other browser add-ons.
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Cross-Platform Malware Detection

Detects and removes both malware targeting macOS and threats made for Windows, so you are always sure the files you send to others are clean.
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Traffic Light (browser extension)

Protects all your browsing, including your online shopping and banking, and can filter out inappropriate content.
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Anti-Phishing

Bitdefender sniffs and blocks websites that masquerade as trustworthy in order to steal financial data such as passwords or credit card numbers.
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Bitdefender Shield

Combines a series of innovative proprietary technologies to automatically detect and remove any threat, with no negative impact on your Mac’s speed and performance.
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Autopilot

Our latest Autopilot is designed to act as a <Security Advisor> and to give you deeper insights into your security posture. Its smart capabilities mean that it can recommend security actions in the context of your system needs and usage patterns.
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24/7 Cloud-Based Guard Duty

We use amazingly powerful Cloud-based technologies to detect and eliminate e-threats, to give you instant worldwide protection, with no drag on your Mac’s resources.
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Ultra-Fast Scanning

Scanning is fast and light on resources, so there's no negative impact on your Mac’s speed and performance.
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Bitdefender VPN

Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
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Anti-tracker

Keeps your browsing private and allows you to manage trackers that collect your data.
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Android Protection
Android Protection

Award-winning security for your Android phone or tablet.

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On-Demand & On-Install Scan

Scans your Android devices to make sure that your apps are clean. It immediately lets you know if a newly installed app poses any danger.
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Web Protection

Our anti-phishing system scans webpages and warns you when you come across fraudulent pages.
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WearON

Extend Bitdefender security to your connected smart watch.
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Anti-Theft

Locate, lock, wipe or send a message to your device in case of loss or theft.
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Autopilot

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Battery & Performance Saver

Secures your mobile experience with virtually no impact on speed or battery life.
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Fast & Light-Weight

Bitdefender is amazingly powerful against malware, yet easy on your phone’s resources, so you won’t see any negative impact on performance.
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Bitdefender VPN

Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
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App Lock

Protects your sensitive apps from unauthorized access with a PIN code or your fingerprint.
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Account Privacy

Check if your online accounts have been involved in any data breach. Account Privacy notifies you when your sensitive data is at risk, and lets you take action depending on its status.
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iOS Protection
iOS Protection

Protect your data and keep your iPhone or iPad safe.

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Web Protection

Notifies you about webpages that contain malware, phishing, or fraudulent content.
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Bitdefender VPN

Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
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Account Privacy

Check if your online accounts have been involved in any data breach. Account Privacy notifies you when your sensitive data is at risk, and lets you take action depending on its status.
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Automatic Upgrades
Automatic Upgrades

Every Bitdefender product is designed to update automatically, and protect you against the most advanced cyber threats on the planet. Upgrades to the latest version are included as part of your subscription. This way, you’ll never miss out on new and improved features, even if you’re halfway through your subscription period.

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Free Online Support
Free Online Support

Our support center is up all year long.

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*Certain limitations may apply according to the Fair Use Policy, part of our Terms of Service.

Easy to install, maintenance-free

System Requirements

Select
  • Windows
  • macOS
  • iOS
  • Android

Bitdefender ANTIVIRUS FREE EDITION

SYSTEM REQUIREMENTS

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

Memory (RAM): 2 GB

Available free hard disk space: 2.5 GB free space

*System performance may be affected on devices that have old generation CPUs

SOFTWARE REQUIREMENTS

Internet Explorer version 11 or higher

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

Bitdefender Antivirus Free Edition uses the same Bitdefender technologies considered the best in the industry, as proven by the last 10 years of independent test scores.

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

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

Bitdefender Antivirus Free Edition 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 Edition on Windows 10?

Windows 10 lets you run the antivirus program of your choosing, and Bitdefender Antivirus Free Edition is the perfect 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 Edition compare to other Bitdefender security products?

Bitdefender Antivirus Free Edition 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 Edition download?

No, Bitdefender Antivirus Free Edition 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 (6GB 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 Edition?

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.