Avira Free Antivirus for Windows free download - The first knowledge sharing application in Vietnam

Important: Your current Windows version is outdated and no longer supported. For your security, we recommend switching to Windows 10 or Windows 11 before downloading Avira software.

Our Avira Phantom VPN is no longer available for use within India as a result of governmental regulations requiring the logging and saving of user data, but you can still use your subscription when traveling outside of India.

All premium apps for mobiles, plus VPN with no data limits

Our free, all-in-one solution with all essential tools

Our 3-in-1 solution with many premium tools

Our comprehensive solution with many premium tools & apps

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 .

Is Avira Free Security for Windows really free?

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.

Avira Free Security: the best free antivirus for Windows 10

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.

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.

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

· 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.

· 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.

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

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

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

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.

How does Avira Free Security for Windows work?

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 to get complete protection for your Windows device?

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.

Why is Windows Defender not enough to protect your system?

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.

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.

Why is antivirus software for Windows PCs important?

Free antivirus for Windows by Avira – Made in Germany

Your device is not compatible

This should take a few minutes only

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

Secure all your devices with Avira

Saves you money while you shop.

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

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

ransomware attempts were thwarted in the last year

phishing attacks were stopped in the last 12 months alone

“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.”

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 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.

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.

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.

Subscription details

below

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.

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.*

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

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

Subscription details

below

Subscription details

below

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# / 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

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

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

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

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.*

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.*

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.*

Offer details

below

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

#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#.