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Download Free Antivirus Software

Get award-winning free antivirus that offers world-class protection against viruses and other malware, secures your Wi-Fi network, and strengthens your privacy. Over 435 million users worldwide trust Avast to protect them.

FREE DOWNLOADAlso available for Mac, Android, and iOS
FREE DOWNLOADAlso available for PC, Android, and iOS
FREE DOWNLOADAlso available for PC, Mac, and iOS
FREE DOWNLOADAlso available for PC, Mac, and iOS
FREE DOWNLOADAlso available for PC, Mac, and Android
2021 Editors' choice
2021 Editors' choice
Advanced virus and malware protection
Home Wi-Fi network security
Easy to install, effortless to use
30+ years of cybersecurity experience
Avast Free Antivirus

World-class virus protection for any device

30+ years of experience helped us create an easy-to-use antivirus that features the industry’s largest threat-detection network, machine-learning virus protection, and home network security that won’t slow down your PC, Mac, Android, or iPhone.

6 layers of antivirus security

Sometimes your operating system’s built-in protection isn’t enough. Adding Avast Free Antivirus lets you run automatic smart scans on software, files, and apps to find cracks where malware can slip in, plus send suspicious files for analysis in the cloud, get threat alerts, and more.

Smart Scan
Scans your device for hard-to-find vulnerabilities in hidden places.
CyberCapture
Automatically sends suspicious files for analysis in the Cloud, then pushes a cure to Avast users if needed.
Behavior Shield
Alerts you immediately if any of your apps start behaving suspiciously.
File Shield
Alerts you to any suspicious files — before you open them.
Rescue Disk
Scans your device while your system’s switched off, so you can safely remove malware.
Quarantine
Stores potentially harmful files and completely isolates them from the rest of your operating system.

Avast Free Antivirus is more than just an antivirus. It also includes these privacy and security features:

Connect safely and with confidence, even on unsecured or public Wi-Fi networks. Block hackers and intruders from piggybacking on your network and stop them from accessing your sensitive, personal files.
Stay safe when browsing, emailing, or working online. Block malicious websites & unsafe downloads, and stop your device from being hijacked and made part of a botnet.
Stop hackers from accessing, changing, or locking your personal files then holding you to ransom.
Get an alert if any passwords linked to your email account have been compromised.

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.

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
“...earns excellent scores in our hands-on tests and independent lab tests...it offers much more than many competing commercial products...”
"Awarded Outstanding Security Product 2021 by AV-Comparatives."

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. And it’s free — so give it a try.

How to install

Get protected right away by following these 3 easy steps:
Step 1
1. Download
Download the file from this page.
Step 2
2. Open the file
Open the downloaded file and approve the installation.
Step 3
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 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.

FAQ

Get security tips for your device, straight from the experts

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Follow these steps to complete your Avast installation:

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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.
Need Help? Please call 855-745-3255
Click this file to start installing Avast.
Click this file to start installing Avast