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The best free antivirus

Lightweight and intuitive protection powered by a community over 400 million strong.
This is next-gen cybersecurity for all.

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Also available for Mac and Android too.

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Your protection,
your way

Free Antivirus
Premium Security, Single-Device
Premium Security, Multi-Device
Avast Free Antivirus Avast Premium Security, Single-Device Avast Premium Security, Multi-Device Avast Ultimate


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$69.99 /year

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$89.99 /year

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$99.99 /year

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Block viruses and other malware Our advanced artificial intelligence blocks suspicious behavior in real-time. If any of our 400 million users encounters a never-before-seen threat, we’ll quickly push the cure out to all of our users so everyone’s protected.

Detect viruses, ransomware, and other threats in real-time.

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Scan for Wi-Fi security weaknesses Our Wi-Fi Inspector feature detects weaknesses in both your home Wi-Fi and public networks (e.g., unsecured network, weak router password, strangers piggybacking on your network, etc.). If a problem is found, we’ll help you fix it.

Expose intruders and security weaknesses in your network.

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Get an extra layer of ransomware security Our Ransomware Shield feature blocks both ransomware and untrusted apps from changing, deleting, or encrypting any files in the folders you’ve protected.

Keep personal photos and files safe from unwanted changes.

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Avoid fake sites for safer shopping Our Real Site feature protects you from hackers who attempt to hijack your router’s DNS (Domain Name System) settings and redirect you to fake sites.

Stop criminals from stealing your passwords and banking info.

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Safely run suspicious apps Our Sandbox feature lets you open suspicious files in a safe environment before you let them run on your PC, making sure they don’t wreak havoc on your PC.

Sandbox any app to avoid affecting the rest of your PC.

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Lock out hackers with an advanced firewall Our Firewall feature keeps hackers on the other side of the wall by monitoring and controlling what goes in and out of your computer.

Stop hackers from sneaking onto your PC to steal your data.

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Stop webcam spying Our Webcam Shield feature blocks untrusted apps from accessing your webcam unless you allow them, so you always know who’s watching you.

Prevent peeping Toms from watching you via your webcam.

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Permanently shred sensitive files Our Data Shredder feature overwrites files with meaningless data multiple times before deleting them so no one can recover them. This is especially useful if you want to sell your PC.

Securely delete files to ensure that no one recovers them.

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Automatically update apps Our Automatic Software Updater feature searches online for updates to the most popular apps on your PC and then installs them automatically to help prevent security vulnerabilities.

Reduce security risks by keeping your other apps up-to-date.

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Remote Access Shield Our Remote Access Shield blocks remote attacks, which exploit tools such as Microsoft's Remote Desktop Protocol.

Stop hackers from remotely taking control of your PC.

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Install on all your devices Our multi-device subscription is perfect for gadget lovers and families alike, allowing you to install on up to 10 devices.

Advanced protection for up to 10 devices (PC, Mac, Android, and iOS).

Includes Avast Cleanup Premium Avast Cleanup Premium Avast Cleanup Premium Next generation tuning & cleaning for your PC $59.99 value — included!

Remove hidden junk, free up disk space, and speed up your computer.

Includes Avast SecureLine VPN Avast SecureLine VPN Avast SecureLine VPN Encrypts your Internet connection at the click of a button $69.99 value — included!

Encrypt your Internet connection for safer, anonymous browsing.

* Anti-spam is available as a separate, free download.


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We have much more to offer

Personal or business, desktop or mobile — whatever your needs — we’ve got you covered.

Business security with teeth

Stay focused on your endgame and leave your endpoint security to us. On-premise or cloud-based, we scale to your business – whatever its size, network or devices.

Protect your business

On the move? We can keep up

Your phone is your bank, office, and arcade. Protect yourself with our leading mobile apps, so you can pay securely, email privately, and free up the space you need.

Protect your mobile

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