Avira Free Antivirus for Windows

Contents

· Install the browser extension Avira Browser Safety for Chrome, Firefox, and Opera to block tracking cookies and annoying banners on websites.

Install avira

Об этой странице

Мы зарегистрировали подозрительный трафик, исходящий из вашей сети. С помощью этой страницы мы сможем определить, что запросы отправляете именно вы, а не робот. Почему это могло произойти?

Эта страница отображается в тех случаях, когда автоматическими системами Google регистрируются исходящие из вашей сети запросы, которые нарушают Условия использования. Страница перестанет отображаться после того, как эти запросы прекратятся. До этого момента для использования служб Google необходимо проходить проверку по слову.

Источником запросов может служить вредоносное ПО, подключаемые модули браузера или скрипт, настроенный на автоматических рассылку запросов. Если вы используете общий доступ в Интернет, проблема может быть с компьютером с таким же IP-адресом, как у вас. Обратитесь к своему системному администратору. Подробнее.

Проверка по слову может также появляться, если вы вводите сложные запросы, обычно распространяемые автоматизированными системами, или же вводите запросы очень часто.

Avira Free Antivirus for Windows

Award-winning technology that helps protect millions of users.

Awarded Advanced Performance Test by AV Comparatives in April 2022

screenshot of Avira Free Security smart scan running

Real-time protection & repair

We protect you from billions of malware attacks annually, including against ransomware, Trojans, worms, viruses, and more. In addition to virus scans, our antivirus software includes advanced repair functionalities, fixing over 90 million files last year.

Avira Free Security

Real-time updates via the cloud

Stronger together: every secured device is as a sensor, which detects emerging, never-seen-before attacks. As soon as a new threat is identified, all our customers are immediately immunized against it, protecting millions within minutes.

Graph about antivirus engine sizes in MB

Light and fast

Avira has one of the smallest footprints in the industry – with virus definition updates 2-5 lighter than most other antivirus products. Unlike many others, our protection doesn’t slow you down nor hog your system’s resources.

Antivirus software products comparison graph

The best antivirus protection

With over 30 years of security experience, Avira offers superior detection, with additional web protection and repair capabilities. And as a German company, we don’t track what you do or sell your data to third parties.

Avira has more than 35 years of online security experience

From our best comments

“Avira Free Security is the latest evolution of the modern antivirus solution. In its basic form, it brings forth one of the best antivirus engines, a VPN, and a lot of other efficient goodies that will have a big impact on protecting your privacy and even ensure that your computer is running as it should.”

softpedia.com

There’s safety in numbers

100 million+

internet-attached devices make up our world-wide sensor network

8.4 million

attacks a day are blocked on average

97.5 million

phishing attacks were stopped in the last 12 months alone

17 million

ransomware attempts were thwarted in the last year

What’s inside?
The latest technologies

Antivirus Scanner

Detects and blocks malware (viruses, ransomware, banker trojans, etc.)

NightVision

Our automated, intelligent learning system protects you against new and evolving threats.

PUA Shield

Identifies potentially unwanted applications hidden within legitimate software.

Safe Browsing

Blocks harmful websites before they load.

Ad Blocker

Prevents intrusive and malicious ads, banners, and pop-ups from loading.

Browser Tracking Blocker

Stops companies from monitoring you online.

Price Comparison

Saves you money while you shop.

Unlock premium features with Avira Antivirus Pro

  • Scans downloads, torrents & cloud storage
  • Scans email attachments
  • Scans USB devices
  • No Ads
  • Unlimited Customer Support

Laptop, smartphone or tablet?

Secure all your devices with Avira

Free Antivirus for Windows

Free Antivirus for Mac

Free Antivirus for Android

Free Mobile
Security for iOS

LOOKING FOR PREMIUM ANTIVIRUS?

Screenshots of Avira Free Security running on different devices. Avira

Install Avira Free Antivirus for Windows in 3 easy steps

Avira Free Security

Run the installer

Double-click on the downloaded file

Confirm

Click “Yes” on the dialog box to start your installation

Follow the on-screen instructions

This should take a few minutes only

System Requirements

Your device is compatible
Your device is not compatible
Read full specifications

Free antivirus for Windows by Avira – Made in Germany

Why is antivirus software for Windows PCs important?

Browsing the internet puts your privacy at risk. Companies want to track your behavior to create a detailed profile about you to serve personalized ads. Browser trackers enable companies to collect a significant amount of data and track your online activities. You can easily become a victim of adware, which is not only intrusive but also slows down your device.

The security of your devices is also at risk, especially when shopping online or using cloud-based services. Cybercriminals are on the lookout for personal data, trying to steal passwords, bank details, or even hijack your computer access to use your devices for attacks against others. Keyloggers, rootkits, spyware, Trojans, and worms are just some of the malware types that can attack your system. To keep your system secure and protect your privacy, you need to install an antivirus software, designed to detect and remove malware. With regular virus scans, you can protect your computer against a wide range of threats.

Why is Windows Defender not enough to protect your system?

The Windows Defender Antivirus is installed by default on all devices running Windows 10. While it is a good option for conducting basic virus scans, it does not offer complete protection. When tested by IT security experts, the default windows antivirus didn’t perform as well as other antivirus software, often failing to block malware. Furthermore, Windows Defender is not updated often enough to keep up with the new threats. To detect the new types of malware that are being spread daily, cybersecurity experts recommend an additional antivirus to conduct real-time virus scans and alert you as soon as a malicious threat is detected.

How to get complete protection for your Windows device?

You can protect your digital life with Avira’s free antivirus for Windows. Avira Free Security is the best free antivirus for Windows, with an impressive track record in tests performed by leading industry experts. It also includes a free VPN for private and secure browsing and built-in performance optimization tools to keep your system running fast and efficiently. Avira Free Security is an all-in-one solution for a carefree digital life.

How does Avira Free Security for Windows work?

Avira’s free antivirus software uses the latest cloud technology to offer you the fastest and most reliable real-time scanning and data protection. The fingerprints of new unknown files are automatically uploaded to our cloud and analyzed in real-time. This way, we protect you from Zero-Day-Attacks, where cybercriminals use new methods to infiltrate your system. Our Protection Cloud can detect these never-seen-before attacks. Once a new thread has been identified, you are instantly protected against it.

· Our intelligent learning system NightVision protects you and your devices against new and evolving threats.

· The PUA Shield discovers potentially unwanted software that is hidden within legitimate software.

· Our Web Protection stops you from visiting dangerous websites, and proactively blocks malicious and phishing URLs in websites, social networks and email.

· Your Windows Firewall is a key element in protecting your whole system. With our Firewall Manager you can optimize the protection with just one click.

· Cybercriminals are constantly trying to distribute their malware via email with infected links or attachments. Our Email Protection, available for the Pro version, scans emails for these dangers.

· Install the browser extension Avira Browser Safety for Chrome, Firefox, and Opera to block tracking cookies and annoying banners on websites.

You can protect yourself and your devices from viruses, ransomware, banker Trojans, and other types of malware with our free antivirus for Windows. Our solutions, “Made in Germany”, have won hundreds of awards and are used by millions of satisfied customers.

Is Avira’s free antivirus compatible with Windows 7?

Microsoft ended support for Windows 7 in January 2020, but Avira’s free antivirus remains compatible with Windows 7. We will continue to provide updates until the end of 2022. While we encourage you to upgrade to Windows 10, we still offer protection if you decide to continue using Windows 7 for a while.

Avira Free Security: the best free antivirus for Windows 10

If your computer or laptop operates with Windows 10, download Avira Free Security, the best free antivirus for Windows 10. Our next-gen AI Technology with cloud-based threat detection provides real-time protection and blazing fast virus scans.

Is Avira Free Security for Windows really free?

Avira is the pioneer of the freemium business model, offering free privacy, security, and performance tools for a wide range of platforms. Avira’s core belief is that digital privacy and security are fundamental digital rights, so our software is and always will be free. Our free antivirus uses the same real-time virus scan engine as the pro version. The pro version brings extra features, such as unlimited VPN traffic, limited to 500 MB per month in the free version, and automatic software updates, but you can enjoy a carefree digital life completely free of charge. If you are looking for extra convenience, you can check out our all-in-one premium solution, Avira Prime.

Download the award-winning free antivirus for Windows

Renewal prices for certain annual plans will increase effective August 28, 2023. Review the new pricing here: loading. for Avira Prime – 5 devices

*Important Subscription, Pricing and Offer Details

  • Contract Type: contract for a monthly or annual subscription, starting when the transaction is complete. Click here for our Terms of Sale.
  • Set-up: to get the protection/service started, you must download and install on each device and/or complete set-up.
  • Free Trial: payment method required if signing up for a free trial (credit/debit card or PayPal only). When the trial ends, the paid subscription starts and the first term is charged, unless cancelled before. Special offer(s) may expire.
  • Renewal Cycle: automatically renews each month or each year after the initial term, unless the subscription renewal is cancelled before the day you are due to be charged in your account or by contacting us. Click here to learn how.
  • Renewal Prices: may be higher than the price for the initial term and are subject to change. They are charged up to 35 days before the annual subscription is due to renew, and we send you a notification email with the renewal price before. They are charged up to 5 days before the monthly subscription is due to renew.
  • Cancellation & Refund: you can cancel your contract and request a full refund within 60 days of purchase for annual subscriptions and within 14 days of purchase for monthly subscriptions. For each annual renewal or free trial with paid annual subscription, you can request a full refund within 60 days of being charged , and after the 60 days, a pro-rated refund of the days left in your renewed subscription term, beginning the month after you request the refund . For free trial with paid monthly subscription, you can request a full refund within 14 days of being charged. For details, visit our Cancellation & Refund Policy. To cancel your contract or request a refund, click hereclick here.
  • Updates: your subscription may include product, service and/or protection updates, and features that may be added, modified, or removed, subject to the acceptance of the License & Services Agreement.
  • Usage: for non-commercial household use only. If you have issues adding a device, please contact us.
  • Get Help
  • Downloads
  • Avira Blog
  • Avira Community
  • Virus Lab
  • Security Wordbook
  • Product Lifecycle
  • Avira VDF Update
  • Voluntary agreement
  • Avira Protection Cloud
  • About Avira
  • Awards and Certifications
  • Careers
  • References
  • Contact
  • Press
  • Threat Landscape
  • Mobile banking malware infographic
  • Beta test

Partners & For Business

  • OEM
  • Affiliate Partners
  • Avira Prime – Business
  • Antivir
  • Adware Removal
  • Antivirus for Samsung
  • Antivirus for Windows 8
  • Antivirus for Windows 10
  • Antivirus for Windows 11
  • Compare products & services
  • Avira Prime
  • Avira Internet Security
  • Avira Free Security
  • Avira Prime Mobile for iOS
  • Avira Prime Mobile for Android
  • Student Discount
  • Student Discount
  • Senior Discount (+55 Years)
  • Senior Discount (+55 Years)

Device security

  • Antivirus
    • Windows Antivirus
    • Mac Antivirus
    • Android Antivirus
    • iOS Antivirus
    • Antivirus Pro

    Online privacy

    • Phantom VPN
      • Windows VPN
      • Mac VPN
      • Android VPN
      • iOS VPN
      • VPN Pro

      Optimization

      • System Speedup
        • Windows System Speedup
        • System Speedup Pro

        © 2023 Avira Operations GmbH, part of Gen Digital Inc. ​All rights reserved.

        Automatically renews, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Automatically renews, unless the renewal is cancelled. Subscription details below.*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer for the 1st #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer for the first #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer for the 1st #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the first 2 year price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the first 2 year price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Subscription details below .*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period# (#cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#), and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period# (#cma_promo_saved_price# off the first 2 year price of #cma_promo_standard_price#), and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period# (#cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#), and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. Special offer for the 1st #cma_period# until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. Special offer for the first #cma_period# until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. Special offer for the 1st #cma_period# until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. Special offer until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period# (#cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#), and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. Special offer until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period# (#cma_promo_saved_price# off the first 2 year price of #cma_promo_standard_price#), and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Payment method required. Special offer until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period# (#cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#), and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to the renewal price. Subscription details below.*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to 2 x annual renewal price of #cma_promo_renewal_price# / year. Subscription details below.*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to the renewal price. Subscription details below.*

        Special offer for the 1st #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Special offer for the first #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Special offer for the 1st #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to the renewal price. Subscription details below.*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the first 2 year price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to 2 x annual renewal price of #cma_promo_renewal_price# / year. Subscription details below.*

        Special offer until #cma_promo_end_date#: #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to the renewal price. Subscription details below.*

        Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Savings compared to the renewal price. Subscription details below.*

        Special offer for the 1st #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Special offer for the first #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Special offer for the 1st #cma_period# until #cma_promo_end_date#. Automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Subscription details below.*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. Special offer for the 1st #cma_period# until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period# and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. Special offer for the first #cma_period# until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period# and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. Special offer for the 1st #cma_period# until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period# and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. Special offer until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. Special offer until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / first #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. Special offer until #cma_promo_end_date#. When trial ends: paid subscription starts at #cma_promo_price# / 1st #cma_period#, and automatically renews at #cma_promo_renewal_price# / #cma_renewal_period#, unless the renewal is cancelled. Offer details below.*

        Payment method required. When trial ends: paid subscription starts and automatically renews, unless the renewal is cancelled. Price subject to change.
        Offer details below .*

        #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Then #cma_promo_renewal_price# / #cma_renewal_period#.

        #cma_promo_price# — #cma_promo_saved_price# off the first 2 year price of #cma_promo_standard_price#. Then #cma_promo_renewal_price# / #cma_renewal_period#.

        #cma_promo_price# — #cma_promo_saved_price# off the 1st #cma_period# price of #cma_promo_standard_price#. Then #cma_promo_renewal_price# / #cma_renewal_period#.

        The remaining value left on your current subscription is converted into additional days in your new subscription.

        Download Avira Free Antivirus

        Award-winning protection for Windows, Mac, Android, and iOS.

        “Avira plugs the holes Windows Defender often leaves open”
        Scroll for more

        GET FREE ANTIVIRUS ON ALL YOUR DEVICES

        Free Antivirus for
        Windows >

        Free Antivirus for
        Mac >

        Free Antivirus for
        Android >

        Free Mobile Security
        for iOS >

        Award-winning technology that helps protect millions of users.

        Awarded Advanced Performance Test by AV Comparatives in April 2022

        Free or Pro?

        Your lifestyle. Your choice.

        Avira Free Antivirus Boxshot

        Avira Free Antivirus

        Protects you from malware

        Avira Antivirus Pro boxshot

        Avira Antivirus Pro

        – Protects you from malware
        – Secures your shopping
        – Blocks phishing attacks
        – No ads & more
        loading. / year (-40%)
        loading. / First year

        • Best Antivirus
        • Best performance
        • Made in Germany
        • Powered by AI

        Antivirus software products comparison graph

        The best antivirus

        But don’t take our word for it — see our latest results from AV-Test

        Graph about antivirus engine sizes in MB

        Best performance

        We offer ultra-light virus definition updates – with a footprint so small it doesn’t slow you down and hog your system’s resources.

        Avira Headquarters, Tettnang, Germany

        Security made in Germany

        Avira is a member of IT Security Made in Germany—synonymous with quality and respect for your privacy. We don’t monitor what you do
        nor share your private info with 3rd parties.

        Avira Protection Cloud AI Technology Graph

        Our technology

        To stay ahead, our multi-layered security harnesses the power of cloud technology, machine learning, and artificial intelligence. And as all the analysis happens on our end, you get top protection with minimal system impact.

        We protect you from all online threats — for free

        Ransomware

        Ransomware

        Ransomware

        What is ransomware?

        There are two types of ransomware: crypto-ransomware that encrypts files (rendering them unreadable), and screen-locking ransomware that locks the home screen. In both cases, the authors of malicious software demand a ransom from its victims to access the files and device.

        Adware

        Adware

        Adware

        What is adware?

        Adware stands for “advertising software”, a program that displays banner ads and/or pop-ups on devices without permission.
        Adware distinguishes itself from your typical in-product ads, in-app banners, and service-supported ads in the following ways:

        • The software, which displays the ads, was installed without your explicit consent (often unnoticed during the installation process).

        • The adware hijacks your web browser and redirects you to third party websites.

        • Sensitive information related to your web browsing and purchasing habits is collected without your knowledge and consent.

        Spyware

        Spyware

        Spyware

        What is spyware?

        Spyware is software that secretly monitors and collects information.
        Spyware can be used legally. Certain companies install it on their employees’ computers to monitor sensitive activities (in which case, it ought to be included in their contracts). It is also included in some parental control programs, which can work in a similar fashion to keep a watchful eye out for cyberbullying.

        Hacking

        Hacking

        Hacking

        What is a hacker?

        It denotes an individual with outstanding programming skills. Although frequently used to denote criminal activity, the term itself is agnostic.
        Hackers are frequently divided into 3 categories: Black Hat, White Hat, and Grey Hat.

        • Black Hat hackers are computer programmers who use their skill for illicit activities, such as developing malware.

        • White Hat hackers, on the other hand, are frequently hired by companies with the explicit purpose of testing their network defenses.

        • Grey Hat hackers are a more elusive community usually associated with hacktivism, a hacking activity driven by political or social motivations.
        The prominent Anonymous group is often thought of as a community of Grey Hat hackers.

        Phishing

        Phishing

        Phishing

        What are phishing attacks?

        These are attempts to capture sensitive information by cybercriminals masquerading as banks, social media platforms, and other official entities.

        Rootkits

        Rootkits

        Rootkits

        What are rootkits?

        It’s a technique used by software to gain long-term access to a computer without having the required permission. Rootkits are typically installed by other malware to cover their traces. For example, a keylogger might siphon off passwords and credit card details, while the rootkit hides the traffic to keep the theft unbeknown to the user. Other cases involve Trojans that install a rootkit in order to create a botnet.

        Trojans

        Trojans

        Trojans

        What is a Trojan?

        Trojans are malicious programs that misrepresent themselves to appear routine or helpful, but actually carry out hidden functions.

        Worms

        Worms

        Worms

        What is a computer worm?

        Worms are malicious programs similar to viruses: they cause havoc on devices and are able to self-replicate. Unlike viruses, which need human action to propagate, worms are able to send out hundreds of thousands of copies of themselves via email, or spread via USB devices and shared folders.

        Private by design: We don’t sell your data.

        Unlike most security vendors, Avira doesn’t sell your data and never will. Nor do we share your data with 3rd parties such as government, Big Tech or advertising networks.

        Avira has more than 35 years of online security experience

        From our best comments

        Rating: 4.5 stars

        rated 4,5/5 on GOOGLE PLAY

        Rating: 4.1 stars

        rated 4,1/5 in AppStore

        CNET Editor’s rating
        Spectacular

        Laptop, smartphone or tablet?

        Secure all your devices with Avira

        Free Antivirus for Windows

        Free Antivirus for Mac

        Free Antivirus for Android

        Free Mobile
        Security for iOS

        LOOKING FOR PREMIUM ANTIVIRUS?

        Learn more about the following

        What is adware?

        Adware shows annoying or infected advertisements on your device without your permission and you get spammed with banners and pop-ups…

        What is malware and how can I stay safe online?

        Visiting websites and downloading files makes your computer or mobile device vulnerable to threats and attacks…

        What is ransomware and why do I need ransomware protection?

        Ransomware is malicious software that encrypts the hard disk of the infected system…

        What is phishing and why can it lead to ID theft?

        Is that email from your bank? This technique uses deceptive emails and websites to gather personal information…

        What is spyware and why is it “watching”?

        Spyware is a software that secretly monitors you and collects data about you, your device, and your online activities…

        Avira Free Antivirus – effective virus protection

        The freeware antivirus app for Windows and Mac

        Why do you need an antivirus app?

        The internet has connected almost all four corners of the globe. Social media and streaming are booming, and banking is now largely done online. But this is attracting an ever growing number of cybercriminals. Malware and malicious app attacks on computers, smartphones, and tablets are constantly increasing. Even though Apple, Microsoft, and tech companies are constantly releasing new security updates, no digital device should be without an antivirus app. That’s because even the latest, fully updated operating system and software cannot always reliably prevent cyberattacks. The freeware virus protection solution Avira Free Antivirus helps you protect your sensitive data from malware and prevent hackers manipulating and blackmailing you.

        How does an antivirus app work?

        An antivirus app is a kind of doctor for computers, smartphones, and tablets, regularly checking for infections. Avira Free Antivirus offers preventative protection for your data and devices, with the antivirus scanner constantly scanning your system for viruses, Trojans, worms, and other malware. Depending on your settings, the software will either delete any malicious file it finds or move it to the quarantine. Once there, the malicious file can no longer do any damage — plus you can check it and delete it if necessary.

        How good and reliable is Avira Free Antivirus?

        Our antivirus app combines real-time protection with the security technology of our Protection Cloud, which examines unknown files for malware and exploits before they can get onto your computer. Thanks to artificial intelligence, our virus protection is always learning and automatically adapting to new cyberthreats. With Avira Free Antivirus, you also get to enjoy reliable protection against:

        • Spyware: Our free antivirus scanner helps you protect yourself from hackers spying on you by identifying hidden spy software and rendering it harmless immediately.
        • Malicious websites: The Avira Browser Safety add-on helps you block potentially dangerous websites before they even load.
        • Ransomware extortion: The anti-ransomware feature helps protect your data from being held hostage by ransomware.
        • Adware: The adware scanner helps you detect and block bloatware or potentially unwanted applications (PUAs) like adware in software downloads.

        Why should I go for Avira Free Antivirus?

        With Avira Free Antivirus, you can protect your data and devices from internet threats. Our next-gen antivirus helps you block ransomware, prevent phishing, and take proactive steps against viruses, Trojans, adware, and spyware. Thanks to our Protection Cloud technology, our real-time protection also safeguards you against zero-day attacks. On top of all this, the virus definitions are updated frequently and installed automatically in the background.

        On which devices can I install Avira Free Antivirus?

        You can use the antivirus app on all the latest computers, smartphones, or tablets running Windows, macOS, Android, or iOS and which meet the following minimum requirements:

        Operating system: Windows 11, Windows 10, Windows 8.1, Windows 8 (32- or 64-bit), or Windows 7 (32- or 64-bit) with Service Pack 1 and the latest updates

        Processor: AMD: Athlon 64 or Sempron (Paris Core)/Opteron and newer

        Centaur technology: VIA C7 and newer

        Intel: Pentium 4 (for desktop) or Pentium M (for laptop) and later

        2 GB of free disk space plus additional space for temporary and quarantine files

        Internet Explorer 8 or newer

        Operating system: macOS 10.13 (El Capitan) or later

        Processor: 64-bit single core

        2 GB of available hard drive space

        Android: Android 6.0 or later

        iOS: iOS 8 or later

        What features does Avira Free Antivirus come with?

        When you download our freeware antivirus solution, you also get:

        • An adware scanner to detect and block unwanted advertising software in downloads.
        • A Malware Scanner to scan your system for malware and delete or quarantine it as necessary.
        • An anti-ransomware feature to protect your data from being held hostage by digital extortionists.
        • A spyware cleaner to unmask and remove spy apps on your computer or smartphone.

        How do I install the Avira Free Antivirus app?

        Download Avira Free Antivirus for Windows or Mac for free from our website or install the app on your mobile device from the Google Play Store or Apple App Store. Open the downloaded file on your Windows or Mac computer and follow the installation instructions. You can then use Avira Free Antivirus straight away to run your first scan and check your device for security, online privacy, and performance issues.

        What’s included in the free download?

        Avira Free Antivirus combines many features and technologies to protect yourself from hacker attacks, malware, and other threats. It also includes other features to help you protect your online privacy as well as various tune-up utilities.

        • Avira Phantom VPN for secure and anonymous surfing
        • Avira System Speedup to clean up and speed up your Windows PC
        • Avira Browser Safety for protection against online tracking and malicious websites
        • Avira Safe Shopping for the best prices and deals from trusted sellers
        • Avira Password Manager to generate ultra-strong passwords for your user accounts
        • Avira Software Updater to keep your Windows drivers and apps up to date

        What is Avira Antivirus Pro and how much does it cost?

        Avira Antivirus Pro has your back in many more ways with additional features such as web, download, and email protection (Windows feature). Armed with these features, you can scan your downloads and email attachments for malware, and even protect yourself from phishing links in emails. In addition, our premium version offers advanced ransomware protection. And since Avira Antivirus Pro performs both a signature-based analysis and heuristic (behavior-based) analysis, it can also detect and block new ransomware types and mutations.

        The premium version of Avira Antivirus Security for Android features web protection for safer surfing as well as camera and microphone protection to prevent prying eyes and ears from snooping on you. The premium version of Avira Mobile Security for iOS also comes with web protection, plus a breach monitor to alert you if your data has been leaked online.

        • The premium protection of Avira Antivirus Pro for Windows or Mac is available from just EUR 34.95 per year (with an annual subscription). Avira Antivirus Security for Android and Avira Mobile Security for iOS are available as annual subscriptions for EUR 7.95.

        How good is free antivirus protection?

        Free antivirus protection like Avira Free Antivirus provides very good real-time protection against numerous types of malware such as viruses, worms, Trojans, and ransomware. The free version uses the same high-performance scan engine and cloud-based detection system as our premium Avira Antivirus Pro version, although this paid-for edition performs an additional signature-based and heuristic (activity-based) analysis, plus comes with an advanced web protection feature. Thanks to the immense, ever-growing threat database and frequent updates, our free antivirus solution can detect even the latest threats. Our free Avira Browser Safety add-on is the perfect companion for your antivirus product. With this browser extension, you can block harmful ads and web pages as well as prevent companies tracking you online.

        How can I remove viruses?

        You can remove viruses using a free antivirus tool such as Avira Free Antivirus. If the virus scanner detects a virus or other type of malware, the suspicious file is moved to the quarantine where it can no longer do any harm. You’ll then be alerted so you can check the file and, if necessary, delete it. It’ll then be erased from your hard drive. It’s then always best to run another virus scan just to check that the malware hasn’t replicated itself.

        How does antivirus software work?

        Antivirus software such as Avira Free Antivirus constantly monitors your system in real time, helping you to protect it from malware such as viruses, worms, Trojans, and ransomware. You can also run regular system scans and check your device for malware. If the virus scanner detects a suspicious file, its digital fingerprint is uploaded to the Avira Protection Cloud where it is checked in real time against the immense, ever-growing threat database. The file is then moved to the quarantine if it is classified as infected, rendering it harmless. Avira Free Antivirus Pro performs a signature-based and heuristic (activity-based) analysis, enabling it to also detect as-of-yet unidentified ransomware. In addition, it comes with an advanced web protection feature.

        Download award-winning antivirus for free

        Renewal prices for certain annual plans will increase effective August 28, 2023. Review the new pricing here: loading. for Avira Prime – 5 devices

        *Important Subscription, Pricing and Offer Details

        • Contract Type: contract for a monthly or annual subscription, starting when the transaction is complete. Click here for our Terms of Sale.
        • Set-up: to get the protection/service started, you must download and install on each device and/or complete set-up.
        • Free Trial: payment method required if signing up for a free trial (credit/debit card or PayPal only). When the trial ends, the paid subscription starts and the first term is charged, unless cancelled before. Special offer(s) may expire.
        • Renewal Cycle: automatically renews each month or each year after the initial term, unless the subscription renewal is cancelled before the day you are due to be charged in your account or by contacting us. Click here to learn how.
        • Renewal Prices: may be higher than the price for the initial term and are subject to change. They are charged up to 35 days before the annual subscription is due to renew, and we send you a notification email with the renewal price before. They are charged up to 5 days before the monthly subscription is due to renew.
        • Cancellation & Refund: you can cancel your contract and request a full refund within 60 days of purchase for annual subscriptions and within 14 days of purchase for monthly subscriptions. For each annual renewal or free trial with paid annual subscription, you can request a full refund within 60 days of being charged , and after the 60 days, a pro-rated refund of the days left in your renewed subscription term, beginning the month after you request the refund . For free trial with paid monthly subscription, you can request a full refund within 14 days of being charged. For details, visit our Cancellation & Refund Policy. To cancel your contract or request a refund, click hereclick here.
        • Updates: your subscription may include product, service and/or protection updates, and features that may be added, modified, or removed, subject to the acceptance of the License & Services Agreement.
        • Usage: for non-commercial household use only. If you have issues adding a device, please contact us.
        • Get Help
        • Downloads
        • Avira Blog
        • Avira Community
        • Virus Lab
        • Security Wordbook
        • Product Lifecycle
        • Avira VDF Update
        • Voluntary agreement
        • Avira Protection Cloud