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Avast Free Antivirus 20.4.2409 Build 20.4.5303 Beta

1 Star2 Stars3 Stars4 Stars5 Stars (50 votes, average: 4.04 out of 5)
Avast Free Antivirus 20.4.2409 Build 20.4.5303 Beta

Avast Free Antivirus software provides complete virus protection for your computer. Antivirus engine is complemented by anti-spyware, firewall and antispam modules. And they protect you against phishing schemes, identity theft and internet distributed web viruses.

The software includes a spyware detection engine to protect you from identity theft as well as viruses. Automatic updates for greater user convenience and safety.

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avast Free Antivirus is full-featured antivirus software. Better than avast free antivirus, especially for web surfing, but without the firewall and antispam included in Avast Premium Security. Also if you wish to customize your security, this is the recommended software.

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Avast Free Antivirus Features:

  • Engine: Blocks viruses and spyware
  • Cloud: Gives file reputation warnings
  • Cloud: Streams real-time updates
  • Remote: Allows assistance from a geek friend
  • SafeZone: Secures shopping and banking
  • Sandbox: Lets you surf the web virtually
  • AutoSandbox: Runs risky programs virtually
  • Boot-time scanner
  • Intelligent Scanner
  • Silent/Gaming Mode
  • Green computing

Hybrid Cloud Technologies:

  • Streaming, real-time virus database updates
  • File reputation system

Greater Usability:

  • avast! Account portal
  • Remote Assistance
  • Easy-to-use user interface
  • Customizable installation
  • Now even faster and less resource-hungry
  • Windows 10 compatible

Core Technologies:

  • Antivirus and anti-spyware engine
  • Real-time anti-rootkit protection
  • Silent Firewall (avast! Internet Security only)
  • Antispam (avast! Internet Security only)
  • avast! WebRep
  • avast! CommunityIQ

Real-time Shields – a team of 24/7 guards:

  • File System Shield
  • Mail Shield
  • Web Shield
  • P2P Shield/IM Shield
  • Network Shield
  • Script Shield
  • Behavior Shield

Other important features:

  • 64-bit support
  • Heuristics engine
  • Code emulator
  • Automatic processing
  • Smart virus definition updates
  • Fast application of updates
  • Multi-threaded scanning optimization
  • Wake-up/Scheduled scanning

Changes in Avast Free Antivirus 20.4.2409 Build 20.4.5303 Beta:

  • Wifi scanner for AVG brand introduced
  • Fixed: support tool.exe runs on Win7
  • Fixed: sleep mode works on 20H1
  • Fixed: behavioral shields improvements
  • Fixed: minor crashes and internal stability improvements

Changes in Avast Free Antivirus 20.4.2408 Build 20.4.5273 Beta:

  • Wifi scanner for AVG brand introduced (with still few minor issues)
  • Instup: fix messages in silent mode
  • Casting fixed – Bob3160
  • Fixed several BSODS

Changes in Avast Free Antivirus 20.4.2407 Build 20.4.5241 Beta:

  • Internal improvements
  • New features will come in next betas
  • Fixed BSODs in Firewall

Changes in Avast Free Antivirus 20.4.2406 Build 20.4.5226 Beta:

  • Smart Scan – new updated library for scanning performance issues
  • Improved logging of license operations so we know what triggers specific operations.
  • New features will come in next betas


  • Rescue Disk: unable to install CRT
  • Couple of minor crashes

Changes in Avast Free Antivirus 20.3.2405 Build 20.3.5200:

  • New alerts – Get alerted when new devices join your network (Useful for catching both hackers and freeloading neighbors)
  • More privacy – You now have the option to be protected from shady websites even in browsers that use the DoH protocol to encrypt the Domain Name System (DNS). Premium Security users can turn this on in their Real Site settings
  • Improved Wi-Fi Inspector – We’ve updated your Wi-Fi Inspector so that it’s a lot more stable/li>

Changes in Avast Free Antivirus 20.3.2404 Build 20.3.5185 Beta:

  • Edition upgrade (where only edition is changed but build remain the same) does not require OS restart
  • Random issue with freezed OS during AV edition downgrade / uninstall
  • Reading account details so name and email address are properly displayed in Menu

Known issues

  • Sensitive data shield does not show protected files in User Interface after upgrade from Free to Premium edition without restart (it is ok after the computer restart)
  • Two application crashes under specific conditions related to SecureDNS and Webshield components
  • SecureDNS component is not fully working after upgrade from Free to Premium edition without restart on MS Windows 7 (it is ok after the computer restart)

Changes in Avast Free Antivirus 20.3.2403 Build 20.3.5164 Beta:

  • AV setup does not offer Google Toolbar installation anymore
  • Rescue disk VPS can be updated now


  • Incorrect marketing content (related to installation instead of update) was displayed after program update in some cases
  • Unsupported localizations are removed during edition upgrade to OMNI edition since it currently supports only ENG localization
  • Getting licenses from an account, when one account logs out and another account logs in
  • Reduced number of retries for getting licenses from the server in case something fails
  • Ability to pay via Paypal
  • Issues with Firewall not running after the update from previous versions
  • Problem with repeated Ask dialogs from Firewall when “Ask” is set as the firewall policy

Changes in Avast Free Antivirus 20.3.2402 Build 20.3.5149 Beta:

  • New logic regarding login (and creating accounts) was added. Thanks to that, Recaptcha is not necessary anymore. We added a possibility to check the entered password (via the small eye). Also, you’ll now find a new link for forgotten passwords.
  • Progress of virus scans got a new look. Check it out by navigating to Protection → Virus Scans and launch a scan of your liking!
  • Scan History got restructured and simplified.
  • SafePrice and Avast Online Security browser extensions are not installed for new installations but remain installed for existing users
  • It is possible to cancel clean installation via button from installation toaster

Changes in Avast Free Antivirus 20.2.2401 Build 20.2.5130 Beta:

  • Fixed issue with Sensitive data shield

Changes in Avast Free Antivirus 20.2.2400 Build 20.2.5125 Beta:

  • Fixed issue with firewall blocking PPTP and L2TP traffic
  • Fixed issue with failed installation on Windows 10 caused by windows update pending (user will be informed that he has to restart PC to successfully install AV)

Changes in Avast Free Antivirus 20.2.2399 Build 20.2.5112 Beta:

  • Fixed UI failed to load issue
  • Fixed detection and restart dialogues
  • Fixed issue with missing post update screen
  • Fixed issue with browser category in smart scan

Changes in Avast Free Antivirus 20.2.2398 Build 20.2.5089 Beta:

  • New premium feature Password Protection – it protects the passwords stored in Chrome or Firefox.
  • UI – we completely reworked javascript layer to speed up UI loading and be able to provide changes more quickly. Some parts are still in progress so you can expect UI issues.
  • New firewall driver

Changes in Avast Free Antivirus 20.1.2397 Build 20.1.5069:

  • Browser extensions – Improve your browsing with our latest extensions (just open Menu > Browser extensions)
  • Fewer popups – If you already have Avast Cleanup Premium, you’ll no longer see offers for it (sorry about that!)
  • Improved statuses – The status messages you see on the main screen are now easier to understand
  • Fixed Rescue Disk – You can now use Rescue Disk again to restore your PC from advanced attacks
  • Other bug fixes – We’ve stomped dozens of other bugs to keep everything running smoothly
  • Fixed problem with logs not correctly rotating (logs had hundreds of MB in some cases)
  • Fixed issues in Smart scan that performance scan does not find any problems
  • Fixed issue with stuck Smart scan

Changes in Avast Free Antivirus 20.1.2396 Build 20.1.5049 Beta:

  • Fixed lot of crashes reported from previous beta
  • Fixed possible deadlock of User Interface
  • Fixed conflict between Self Defense and IDauto software

Changes in Avast Free Antivirus 20.1.2395 Build 20.1.5026 Beta:

  • Browser extensions
    • Improved detection of status of browser extensions
    • Added support of detection in Opera browser
  • Update process of user interface was improved
  • Smart Scan improvements – Advanced issues – when everything is ok, we are showing “green” results instead of hidding the tab


  • Rescue Disc is working again
  • It is now possible to export certificate in Mail Shield settings

Changes in avast Antivirus 2019 19.9.2394 Build 19.9.4824 Beta:

  • Browser extensions now available in Avast/AVG UI
  • Optimized enabling/disabling of all shields. Any feedback is appreciated
  • Many bugs and crashes fixed

What’s New in avast Antivirus 2019 19.8.2393 Build 19.8.4793:

  • Hello, menu, my new friend – Check out all the useful shortcuts we’ve added to our top-right menu
  • Goodbye, double-click – You no longer have to click twice on our popups to open or close them
  • Smarter Smart Scan – Virus scan now deals with threats automatically, so you don’t have to sit through our scans
  • “Reboot” got the boot – A redundant reboot message was fixed. A redundant reboot message was fixed
  • Firewall fix – Changing your Firewall settings will now (gasp!) actually change your Firewall settings
  • Passive Mode fix – Turning on or off Passive Mode no longer shows an infinitely spinning circle (your cat may miss this one, but you won’t)
  • Fixed crashes of UI after online installation
  • New CEF version now to render the UI (3.3626.1895)
  • Fixed crash related to running Sandbox (if double-clicked) and also fixed displaying of detection dialogs in Sandbox

Homepage –

Supported Operating Systems: Windows 7, 8, 8.1, 10 (32 bit, 64 bit).

Leave a Reply

7 Comments on Avast Free Antivirus 20.4.2409 Build 20.4.5303 Beta

  • Gravatar


    Sell your info. ?

  • Gravatar


    It seems that a newer version,official release, avast Antivirus 2016 12.3.2280 Final,at 10.49 AM was released.Can You check it please TIA Roger

  • Gravatar


    This tatest version is corrupt

    • Gravatar


      There is a bug in this version.This is recognized By Avast,Custo Care--> technical service

  • Gravatar


    The Link to the Free version is the online installer and not the full version.Can You correct it,T.I.A

    • Gravatar


      As you wish. Download links now redirect to offline installers

  • Gravatar


    Downloaded and installed, seems lighter and lesser false positive reported.