Compare our award-wining products and get the best real-world protection, so you can keep doing the things that matter while we handle security.
If someone says it's impossible to get a good service for free, they probably haven't heard about Bitdefender.
Cybernews.com (rated Bitdefender #1 out of 19 antivirus apps in 2022)
The digital Stone Age of easy-to-spot viruses is over. Today’s e-threats - from Zeus P2P to Clop Ransomware - go straight for your wallet and are smarter than ever at evading detection, scaling across networks, and changing in response to thwarted attacks.
By learning & monitoring the unique pattern of daily activity on your PC, Bitdefender Antivirus Free is able to instantly detect and isolate suspicious changes in real-time, no matter the source.
So you’re shielded from known and emerging threats, including …
Financial extortion attacks that freeze PCs are on the rise, attacking everyone from individuals to global enterprises.
With cryptocurrency soaring in popularity, hijacking PC resources to mine for coins has become an all-too-common hazard.
AIs like GPT-3 are now being exploited to write shockingly personalized emails that can dupe just about anyone.
Every software update comes with flaws that need fixing. Until they’re detected, hackers use them as infection points.
Notoriously hard to detect, these attack your PC’s central nervous system and use its credentials to steal & impersonate you.
Malware can be embedded into almost anything you click on, including “next-gen” financial assets like NFTs.
Many free antivirus solutions are as intrusive and resource-heavy as the viruses they’re supposed to stop. Only Bitdefender Antivirus Free is designed from the ground up to keep you safe without disrupting your workflow and focus.
You’re in luck: Bitdefender Antivirus Plus and Total Security come with SafePay and a built-in VPN (as well as a host of additional security features), so you can browse, shop and bank online from anywhere with a 100% encrypted, anonymous connection.
Compare our award-wining products and get the best real-world protection, so you can keep doing the things that matter while we handle security.
Top-notch protection and uncompromising speed for Windows.
Complete Real-Time Data Protection
Absolute power in the most efficient anti-malware solution available today. Automatic protection that goes beyond antivirus.
Advanced Threat Defense
Our improved behavior-based technology detects and blocks advanced threats and ransomware.
Web attack prevention
Our web filtering technology ensures that you never land on a harmful website.
Anti-Phishing & Anti-Fraud
Prevents phishing or online fraud when you shop, bank, or browse.
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.
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.
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.
Multi-Layer Ransomware Protection
Multiple layers of ransomware protection keep your files safe from encryption.
Vulnerability Assessment
Scan for security holes and vulnerabilities with just one click.
Rescue Environment
Some sophisticated malware, 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.
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.
Game, Movie & Work Profiles
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.
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.
Bitdefender VPN
Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
Anti-tracker
Keeps your browsing private and allows you to manage trackers that collect your data.
Safe Online Banking
Bank and shop with Safepay, our unique, dedicated browser that secures your transactions.
Wi-Fi Security Advisor
Access your Wi-Fi network and router security, no matter where you connect from.
Social Network Protection
Stay safe from malicious links and any online threats your friends unwittingly pass on to you via social networks.
Password Manager
Secures your passwords, credit card information, and other sensitive data in a cyber-vault for easy access whenever you need them.
File Shredder
Delete a file for good and leave no traces that it ever existed on your PC.
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.
Webcam Protection
Notifies you when apps try to access your webcam, and lets you block unauthorized access.
Antispam
Filters irrelevant messages in your Inbox. It’s available for local email clients (Microsoft Outlook, Thunderbird).
Parental Control
Offers digital help to parents and extra online safety to children. Log in remotely to Bitdefender Central to keep up with them.
Privacy Firewall
Blocks intrusions and filter your network traffic.
Speed Up Your Devices
Improves speed and performance for your devices with OneClick Optimizer.
Anti-Theft
Packs effective anti-loss and anti-theft tools and it is remotely accessible.
Absolute protection, designed for your Mac.
Safe Files
Prevents unauthorized changes to your most important files.
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.
Adware Blocker
Free your Mac from adware, hijacker programs, unwanted toolbars, and other browser add-ons.
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.
Traffic Light (browser extension)
Protects all your browsing, including your online shopping and banking, and can filter out inappropriate content.
Anti-Phishing
Bitdefender sniffs and blocks websites that masquerade as trustworthy in order to steal financial data such as passwords or credit card numbers.
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.
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.
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.
Ultra-Fast Scanning
Scanning is fast and light on resources, so there's no negative impact on your Mac’s speed and performance.
Bitdefender VPN
Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
Anti-tracker
Keeps your browsing private and allows you to manage trackers that collect your data.
Award-winning security for your Android phone or tablet.
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.
Web Protection
Notifies you about webpages that contain malware, phishing, or fraudulent content.
WearON
Extend Bitdefender security to your connected smart watch.
Anti-Theft
Locate, lock, wipe or remotely send a message to your Android device.
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.
Battery & Performance Saver
Secures your mobile experience with virtually no impact on speed or battery life.
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.
Bitdefender VPN
Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
App Lock
Protects your sensitive apps from unauthorized access with a PIN code or your fingerprint.
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.
Protect your data and keep your iPhone or iPad safe.
Bitdefender VPN
Protects your online presence by encrypting all Internet traffic. 200 MB daily traffic included per device.
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.
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.
Our support center is up all year long.
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.
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
SOFTWARE REQUIREMENTS
Supported browsers:
Chrome 56 and later
Firefox 52 and later
Microsoft Edge
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.
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.
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.
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.
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.
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.
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.
Your subscription may include product, service and/or protection updates and features that may be added, modified or removed subject to Bitdefender Subscription Agreement and Terms and Conditions for Home Users and Privacy Notice.
User guide