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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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£59.99 /year

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£74.99 /year

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£84.99 /year

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Block viruses and other malwareOur 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 weaknessesOur 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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Avoid fake sites for safer shoppingOur 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 appsOur 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 firewallOur 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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Block annoying spam and phishing emails*Our Anti-Spam feature blocks potentially dangerous spam and phishing emails. This feature is available as a separate, free component for the email clients installed on your PC.

Stop annoying junk mail for a safer, cleaner inbox.

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Get an extra layer of ransomware securityOur 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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Stop webcam spyingOur 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 filesOur 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 appsOur 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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Install on all your devicesOur 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 £49.99 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 £59.99 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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Fast, light and powerful free protection.
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