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Download Free Antivirus Software

Get award-winning free antivirus that offers powerful protection against viruses and other malware, secures your Wi-Fi network, and strengthens your privacy.

FREE DOWNLOAD Also available for Mac, Android, and iOS
FREE DOWNLOAD Also available for PC, Android, and iOS
FREE DOWNLOAD Also available for PC, Mac, and iOS
FREE DOWNLOAD Also available for PC, Mac, and iOS
FREE DOWNLOAD Also available for PC, Mac, and Android
2021 Editors' choice
2021 Editor's choice
6 layers of security
Safeguard your home network
Stop ransomware threats
Block distractions & interruptions

Enjoy cloud-light, award-winning free virus protection

Packed with the largest threat-detection network, machine-learning virus protection, and home network security that won’t slow down your PC, Mac, Android, or iPhone.

Looking for Avast One instead?

Avast One gives you our award-winning antivirus, plus some of our best privacy and clean-up tools, together in one handy download.

Easy to install,
effortless to use

Avast’s antivirus scans for security and performance issues and helps you to fix them instantly. It also protects you in real time by analyzing unknown files long before they reach your device.

What else is inside the latest version?

Protect your home Wi-Fi network

Scan your home network for threats, see who’s using it, and connect safely every single time.

Stop ransomware threats

Stop ransomware attacks and ensure your personal files, photos, and documents can’t be held hostage.

Block distractions & interruptions

Block pop-ups and other interruptions when gaming, watching movies, or presenting in fullscreen.

Avast Free Antivirus: more than a standard antivirus

In addition to our real-time antivirus protection which runs silently in the background, you also get extra privacy and security features to keep you even safer online.

Intelligent Antivirus
Detect and block viruses and other malware like spyware, ransomware, and phishing threats.
CyberCapture
Automatically send suspicious files for analysis in the cloud, and push a cure to all Avast users if it's a threat.
Network Inspector
Automatically detect weaknesses in your home Wi-Fi and strangers piggybacking on your network.
Smart Scan
Find all those cracks which allow malware to slip in, from unsafe settings and passwords to suspicious add-ons and out-of-date software.

Layer upon layer of security

Avast’s antivirus products use multiple layers of security to keep you safe from even the newest, never-before-seen threats.

Over 435 million users worldwide trust Avast

The UI for your software - amazing. Great work over the years. Can't say enough good things!

Ryan Rentfro

Thank you, Avast, for the excellent work you do. I run your antivirus software on both my Mac OS X and my Windows machines. You have the best products on the market, period.

Eric Scherer

I’ve been using Avast for over a year and have found it one of the best free software protection devices on the market.

Daryl Colley

FAQ

How to install

Get protected right away by following these 3 easy steps:
Step 1
Download
Download the file by clicking here here here here.
Step 2
Open the file
Open the downloaded file and approve the installation.
Step 3
Install the file
Run the installer and follow the simple instructions.

System requirements

All devices require an internet connection for automatic security and program updates.
PC with Windows 11, 10, 8.1, 8 or 7 (both the 32-bit and 64-bit versions, excluding Starter and RT editions), 1 GB RAM and 2 GB of hard disk space.
Mac running macOS 10.12 (Sierra) or later.
Android phone or tablet running operating system Google Android 6.0 (Marshmallow, API 23) or higher.
iPhone or iPad running iOS 12.0 or higher.
Avast Free Antivirus

Download award-winning free antivirus

FREE DOWNLOAD Also available for Mac, Android, and iOS
FREE DOWNLOAD Also available for PC, Android, and iOS
FREE DOWNLOAD Also available for PC, Mac, and iOS
FREE DOWNLOAD Also available for PC, Mac, and iOS
FREE DOWNLOAD Also available for PC, Mac, and Android

Get security tips for your PC, straight from the experts

Close

Follow these steps to complete your Avast installation:

Initiating download...
Note: If your download did not start automatically, please click here.
1
Run the Avast installer
Run the Avast installer
Run the Avast installer
Run the Avast installer
Run the Avast installer
Save the Avast file
Save the Avast file
Save the Avast file
Save the Avast file
Save the Avast file
Open the Avast file to install
Open the Avast file to install
Open the Avast file to install
Open the Avast file to install
Open the Avast file to install
Run the Avast installer
Run the Avast installer
Run the Avast installer
Run the Avast installer
Run the Avast installer
Click the downloaded file on the bottom-left corner of your browser.
Click the downloaded file on the bottom-left corner of your browser.
Click the downloaded file on the bottom-left corner of your browser.
Click the downloaded file on the bottom-left corner of your browser.
Click the downloaded file on the bottom-left corner of your browser.
Click Save File when prompted. Go to Downloads on the top-right corner to open the setup file.
Choose Save File when prompted, then click OK.
Click Save File when prompted. Go to Downloads on the top-right corner to open the setup file.
Click Save File when prompted. Go to Downloads on the top-right corner to open the setup file.
Choose Save File when prompted, then click OK.
Go to Downloads on the top-right corner and click on the downloaded file.
Go to Downloads on the top-right corner and click on the downloaded file.
Go to Downloads on the top-right corner and click on the downloaded file.
Go to Downloads on the top-right corner and click on the downloaded file.
Go to Downloads on the top-right corner and click on the downloaded file.
Go to your Downloads folder and click on the downloaded file.
Go to your Downloads folder and double-click on the downloaded file.
Go to your Downloads folder and click on the downloaded file.
Go to your Downloads folder and click on the downloaded file.
Go to your Downloads folder and double-click on the downloaded file.
2
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Open the Avast file to install
Confirm the installation
Confirm the installation
Open the Avast file to install
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Confirm the installation
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Allow on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Allow on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Go to Downloads on the top-right corner to open the setup file and approve the installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Go to Downloads on the top-right corner to open the setup file and approve the installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Allow on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Allow on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Allow on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Yes on the system dialog window to approve the start of your Avast installation.
Click Allow on the system dialog window to approve the start of your Avast installation.
3
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Follow setup instructions
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click the button in the installer window to begin installation.
Click this file to start installing Avast.
Click this file to start installing Avast