download avast free Avast! Free Edition 21.5.6354. Avast! Free Antivirus is the perfect package of applications for people who send emails and surf popular websites to protect their computers from a virus infection or other malware threats and significantly reduce the risk of losing vital or private data. Be sure to see How to Install Avast as a Lightweight Antivirus . If you use it correctly, and in combination with other programs such as data backup utilities, it will significantly reduce the risk of your computer being attacked or infected by a virus and thus the risk of losing vital or private data. Based on the award-winning avast! Antivirus engine, avast! Antivirus contains all of the features you would expect in a modern antivirus program. It incorporates anti-spyware technology certified by West Coast Labs' Checkmark process and anti-rootkit and strong self-protection capabilities. Still, it now provides even faster scanning with improved detection ability. It contains several real-time "Shields," which continuously monitor your email and internet connections and check the files on your computer whenever they are opened or closed. Avast! Antivirus now also comes with a completely revamped user interface for more efficient scanning. Avast! Pro Antivirus offers some additional features, including a script shield and a process virtualization module, while avast! Internet Security comes with an antispam filter and a built-in firewall. Once installed, Avast! will run silently in the background protecting your computer against all known forms of malware. You don't need to do anything else - install and forget! Limitations: Offers to install an additional program, usually Google Chrome and Avast Mobile after installation. Both can be opted out. They typically offer a deal on upgrading to Avast Pro or Avast Internet Security for about $19.99. Installing Avast SecureLine VPN. Avast SecureLine VPN for Windows Avast SecureLine VPN for Mac Avast SecureLine VPN for Android Avast SecureLine VPN for iOS is a virtual private network that secures your internet connection using an encrypted tunnel to disguise your real location, and prevent others from eavesdropping on your online activity over public Wi-Fi and unsecured networks. Avast SecureLine VPN is a paid product that requires a subscription to use. This article contains instructions to install the application and either activate an existing subscription, start a free-trial period, or purchase Avast SecureLine VPN. Avast SecureLine VPN is a paid product that requires a subscription to use. This article contains instructions to install the application and either activate an existing subscription, or purchase Avast SecureLine VPN. Install Avast SecureLine VPN. Click the button below to download the Avast SecureLine VPN setup file, and save it to a familiar location on your PC (by default, downloaded files are saved to your Downloads folder). Download Avast SecureLine VPN for Windows Right-click the downloaded setup file avast_vpn_online_setup.exe , and select Run as administrator from the context menu. If prompted for permission by the User Account Control dialog, click Yes . To change the default setup language, click the current language in the top-right corner of the screen and select your preferred language. Then, click Install now . Wait while setup installs Avast SecureLine VPN on your PC. Click Continue . Click Continue ▸ Get started to learn about Avast SecureLine VPN and get started. Click the red ( OFF ) slider to connect to Avast SecureLine VPN servers. Select one of the options below: Start free trial : Start a free trial to access Avast SecureLine VPN for a limited time period. You are prompted to enter payment details, but you will not be charged until the trial subscription ends. If you do not want to continue using Avast SecureLine VPN after the free trial expires, you need to cancel the trial subscription. Buy now : Follow the on-screen instructions to purchase an Avast SecureLine VPN subscription. Already purchased? : If you already purchased Avast SecureLine VPN before installation, activate your paid subscription. For detailed activation instructions, refer to the following article: Avast SecureLine VPN is now installed on your PC. Click the button below to download the Avast SecureLine VPN setup file, and save it to a familiar location on your Mac (by default, downloaded files are saved to your Downloads folder). Download Avast SecureLine VPN for Mac Double-click the downloaded setup file avast_secureline.dmg . Double-click the Avast SecureLine VPN icon. Click Continue to determine if Avast SecureLine VPN can be installed. Click Allow . Click Continue . Click Continue to confirm that you have read the Software License Agreement , then click Agree to confirm that you accept the terms. Click Install to proceed with default installation, or click Change Install Location. or Customize if you want to make changes to the default setup. Enter your Administrator password and click Install Software . Wait while setup installs Avast SecureLine VPN on your Mac, then click Close . On the main Avast SecureLine VPN screen, click Continue . Click Continue ▸ Get started to learn about Avast SecureLine VPN and get started. Click the red ( OFF ) slider to connect to an Avast SecureLine VPN server. Select one of the options below: Start free trial : If you do not yet have a paid subscription, start a free-trial period to access Avast SecureLine VPN for a limited time period. Buy now : Follow the on-screen instructions to purchase an Avast SecureLine VPN subscription. Already purchased? : If you already purchased Avast SecureLine VPN before installation, activate your paid subscription. For detailed activation instructions, refer to the following article: Avast SecureLine VPN is now installed on your Mac. On your Android device, tap the button below to open the Avast SecureLine VPN product page in Google Play Store . Go to Google Play Store Tap Install to download and install the app. When installation is complete, tap Open to open Avast SecureLine VPN. Select one of the options below: Join now : Purchase a yearly Avast SecureLine VPN subscription. View subscriptions : View alternative subscription plans, and follow the on-screen instructions to complete the purchase. Activate : If you already purchased Avast SecureLine VPN before installation, tap ⋮ Options (three dots) ▸ Already purchased? . For detailed activation instructions, refer to the following article: Avast SecureLine VPN is now installed on your Android device. On your iOS device, tap the button below to open the Avast SecureLine VPN product page in the App Store . Go to the App Store Tap Get to download and install the app. When installation is complete, tap Open to open Avast SecureLine VPN. Select one of the options below: Subscribe now : Purchase a yearly Avast SecureLine VPN subscription with the first 7 days as a free-trial period. You will not be charged until the free-trial period ends. If you do not want to continue using Avast SecureLine VPN after the free-trial period, you need to cancel the trial subscription. Already purchased? : If you already purchased Avast SecureLine VPN before installation, activate your paid subscription. For detailed activation instructions, refer to the following article: Avast SecureLine VPN is now installed on your iOS device. Troubleshooting. If you experience any installation issues: Ensure your PC meets the minimum system requirements and your Windows is up-to-date. Windows 10 except Mobile and IoT Core Edition (32 or 64-bit); Windows 8/8.1 except RT and Starter Edition (32 or 64-bit); Windows 7 SP1 or later, any Edition (32 or 64-bit) Windows fully compatible PC with Intel Pentium 4 / AMD Athlon 64 processor or above (must support SSE2 instructions) Advanced features, like Smart VPN and improved connection method are available for Windows 10 256 MB RAM or above 300 MB free space on the hard disk Internet connection to download, activate, and use the VPN service Optimal standard screen resolution no less than 1024 x 768 pixels is recommended. Check that the downloaded setup file is not corrupted. For instructions, refer to the following article: If you use third-party antivirus software , try temporarily disabling your protection (this applies only if you do not use Avast Antivirus). For more information, refer to the following article: Restart your PC, then try to install Avast SecureLine VPN again by following the exact steps in this article. If the issue persists, contact Avast Support. If you experience any installation issues: Ensure your Mac meets the minimum system requirements. Apple macOS 11.x (Big Sur), Apple macOS 10.15.x (Catalina), Apple macOS 10.14.x (Mojave), Apple macOS 10.13.x (High Sierra), Apple macOS 10.12.x (Sierra) Advanced features, like Smart VPN and improved connection method are available for Apple macOS 10.15 and later 90 MB free space on the hard disk Intel based Mac with 64-bit processor Internet connection to download, activate, and use the VPN service Optimally standard screen resolution not less than 1280 x 800 pixels. Restart your Mac, then try to install Avast SecureLine VPN again by following the exact steps in this article. If the issue persists, contact Avast Support. If you experience any installation issues, ensure your Android device meets the minimum system requirements. Google Android 6.0 (Marshmallow, API 23) or later Internet connection to download, activate, and use the VPN service. If the issue persists, contact Avast Support. If you experience any installation issues, ensure your iOS device meets the minimum system requirements. Apple iOS 12.0 or later Internet connection to download, activate, and use the VPN service. If the issue persists, contact Avast Support. Further recommendations. To learn more about Avast SecureLine VPN, refer to the following articles: To learn more about Avast SecureLine VPN, refer to the following articles: To learn more about Avast SecureLine VPN, refer to the following article: Installing Avast AntiTrack. Avast AntiTrack is an advanced privacy application designed to keep your identity safe from the latest online tracking techniques. Avast AntiTrack is an advanced privacy app designed to keep your identity safe from the latest online tracking techniques. Avast AntiTrack is a paid product that requires a subscription to use. This article explains how to install the application and either activate an existing subscription, start a free trial, or purchase a subscription. Avast AntiTrack is a paid product that requires a subscription to use. This article explains how to install the app and either activate an existing subscription, start a free trial, or purchase a subscription. Avast AntiTrack is a paid product that requires a subscription to use. This article explains how to install the application and activate an existing subscription. Install Avast AntiTrack. Click the button below to download the Avast AntiTrack setup file, and save it to a familiar location on your PC (by default, downloaded files are saved to your Downloads folder). Download Avast AntiTrack for Windows Right-click the downloaded setup file avast_antitrack_premium_setup.exe and select Run as administrator from the context menu. See subscription options : Purchase an Avast AntiTrack subscription. Try for free : Start a free trial for access to all Avast AntiTrack features for a limited time period. Already purchased? : If you purchased Avast AntiTrack before installation, activate your subscription by entering the activation code from your order confirmation email. Avast AntiTrack is now installed on your PC. After installation, you are prompted to install the Avast AntiTrack extension in your web browsers. If you skip this step, or need to install the browser extension later, refer to the following article for instructions: Click the button below to download the Avast AntiTrack setup file, and save it to a familiar location on your Mac (by default, downloaded files are saved to your Downloads folder). Download Avast AntiTrack for Mac Double-click the downloaded setup file avast-antitrack.dmg . Click the Avast AntiTrack icon and drag it to the Applications folder. Click Go ▸ Applications in the Apple menu bar, then double-click the Avast AntiTrack icon to open the application. Click Open . Enter your administrator password , then click Install Helper . Review the welcome tutorial by clicking Next . When the Let's get started! screen appears, type or paste your activation code (including hypens), and click Activate . When the message Activation successful appears, click OK . Avast AntiTrack is now installed on your Mac. On your Android device, tap the button below to open the Avast AntiTrack product page in Google Play Store . Go to Google Play Store Tap Install to download and install the app. When installation is complete, tap Open . Select one of the options below: View subscriptions ▸ Already purchased? : Activate your existing subscription by entering the activation code. Alternatively, click View subscriptions to purchase a subscription option. Start 7-day free trial : Purchase a yearly Avast AntiTrack subscription, including the first 7 days for free. You are not charged if you cancel the subscription within 7 days. Avast AntiTrack is now installed on your Android device. Troubleshooting. If you experience any installation issues: Ensure your PC meets the minimum system requirements below and your Windows is up-to-date. Windows 10 except Mobile and IoT Core Edition (32 or 64-bit); Windows 8/8.1 except RT and Starter Edition (32 or 64-bit); Windows 7 SP1 or higher, any Edition (32 or 64-bit) Windows fully compatible PC with Intel Pentium 4 / AMD Athlon 64 processor or above (must support SSE2 instructions) 512 MB RAM or above 300 MB free space on the hard disk Internet connection to download, activate, and use the service Optimal standard screen resolution no less than 1024 x 768 pixels is recommended Google Chrome, Mozilla Firefox, Microsoft Edge, Opera, or Microsoft Internet Explorer web browser. If the issue persists, contact Avast Support. If you experience any installation issues: Ensure your Mac meets the minimum system requirements below. Apple macOS 11.x (Big Sur), Apple macOS 10.15.x (Catalina), Apple macOS 10.14.x (Mojave), Apple macOS 10.13.x (High Sierra), Apple macOS 10.12.x (Sierra), Apple Mac OS X 10.11.x (El Capitan) Intel based Mac with 64-bit processor 500 MB free space on the hard disk 2 GB RAM or above Internet connection to download, activate, and use the service Optimally standard screen resolution not less than 1024 x 768 pixels Safari, Google Chrome, Mozilla Firefox, or Opera web browser. If the issue persists, contact Avast Support. If you experience any installation issues, ensure your Android device meets the minimum system requirements below.