This step-by-step manual guide explains how to install Avast Free Antivirus 2016 (version 11) software on all major Windows versions running on your PC or laptop – Windows 10, 8, 8.1, 7, Vista and XP (32-bit or 64-bit). It assumes you have the software already downloaded and ready to install on your hard drive or external device like a flash drive. For those who like videos, there is a fantastic commentated ‘Video Manual‘ on this page.

Avast antivirus system requirements are nothing special, and really everyone meets them these days, but if you’re not sure you can check them here.

Even though this guide is focused on the Avast Free Antivirus, you may also use it when installing other Avast products like Pro Antivirus, Internet Security or Premier.

1. Run the Avast Setup File (Installer) and Select Installation Type

Locate the installer file called ‘avast_free_antivirus_setup.exe,‘ or ‘avast_free_antivirus_setup_online.exe,‘ on your computer and start the three-step installation. Before the installation wizard is launched you will see a following loading screen for a few seconds:

Avast Free Antivirus 2016 – Loading Installation WizardAvast Free Antivirus 2016 – Loading Installation Wizard

If the install wizard is not in your language, you can change it in the top-right corner. Your selected language will also be the one in which you will have the Avast user interface, though you can change the language anytime later in the program settings.

On the first screen you have to choose the type of installation:

  • Regular installation (recommended) – Avast will be installed with the default set of components (including SecureLine VPN, Cleanup, Browser Cleanup, Passwords, and Software Updater).
  • Custom installation (for advanced users) – You can select which components, shields, and languages you want to install. This is useful when you don’t want to install some specific component like SecureLine VPN or Cleanup.

Full list of Avast 2016 components includes (all are installed by default with the regular installation):

Unless you are an advanced user, we recommend to go with the regular installation.

At the bottom of the first step, Avast usually offers some additional products like Google Chrome, Dropbox, or Avast Passwords. So be sure to check this option as well and decide whether or not you want that product to be installed.

Avast Free Antivirus 2016 Installation Step 1/3 – Choosing the Type of InstallationAvast Free Antivirus 2016 Installation Step 1/3 – Choosing the Type of Installation

2. Actual Avast Installation Process

During the second step, you actually do not have to do anything. You can just sit and watch the progress bar show Avast being downloaded, creating a system restore point, and the Avast files being copied onto your computer. The installation process will take around 2-3 minutes, depending on your Internet connection, but you can use your computer and do any other activity.

Avast Free Antivirus 2016 Installation Step 2/3 – Actual Installation ProcessAvast Free Antivirus 2016 Installation Step 2/3 – Actual Installation Process

3. Avast Installation Finished (Now You Are Protected)

Congratulations, now you should have Avast antivirus 2016 completely installed on your computer. In the last step just click on ‘Continue‘ and finish the installation process.

Avast Free Antivirus 2016 Installation Step 3/3 – Installation FinishedAvast Free Antivirus 2016 Installation Step 3/3 – Installation Finished

4. Read and Accept Avast Privacy Policy

In the next step, you have to accept the Avast Privacy Policy. You may read it in the full version, but in short – AVAST collects information from your computer and may share it with a third party; on the other hand, this information can’t be used for targeting or identifying your person. So really no big deal. If you agree and accept the new EULA, just click on the blue button ‘Continue’.

If you care about your privacy you can opt-out from any data collection by going to Avast settings » ‘Privacy‘ and un-checking options ‘Participate in the Avast community‘ and ‘Participate in data sharing‘.

Avast Free Antivirus 2016 Post Installation – Accepting Privacy PolicyAvast Free Antivirus 2016 Post Installation – Accepting Privacy Policy

5. Review Additional Avast Products

In the last step of the installation process, you can review additional Avast products. Typically the Avast Free Mobile Security for Android. To close the windows click on the link ‘No, I don’t want to protect my Android phone‘.

At this point we strongly recommend to restart computer so Avast is fully integrated and configured for your system.

Avast Free Antivirus 2016 Post Installation – Additional Avast Products (Avast Free Mobile Security)Avast Free Antivirus 2016 Post Installation – Additional Avast Products (Avast Free Mobile Security)

6. Avast Installation Completed – Register for a Free 1-Year License Key (Activation Code)

Once the installation is complete and system is restarted, we recommend to do a free registration so you can use the product for one year. Check our guide here – ‘Register for Free and Get License Key (Activation Code) for Your Avast Antivirus 2016‘.

Avast Free Antivirus 2016 is Completely Installed and Ready to UseAvast Free Antivirus 2016 is Completely Installed and Ready to Use

Video Manual – How to Install & Register a Free License for Avast Free Antivirus 2016

Known Avast Installation Errors/Problems

Here we will list all known errors/problems occurring during the Avast installation process and solutions how to fix them. If you are having any troubles with the installation, please let us know in the comments below.

System Requirements for Avast Antivirus 2016 on PC or laptop

  • Operating system Microsoft Windows 10 / 8.1 / 8 / 7 SP1 or higher / Vista / XP SP2 or higher (any Edition, 32-bit or 64-bit)
  • Processor Intel Pentium 4 / AMD Athlon 64 or above
  • 256 MB RAM memory or above
  • 1.5 GB of free hard disk space
  • Please note that Avast antivirus 2016 (version 11) won’t work on Microsoft Windows 95 / 98 / ME / 2000 / Server, or any other operating system which isn’t specified above
  • These system requirements are relevant for all Avast core products (Free Antivirus, Pro Antivirus, Internet Security, and Premier)

Additional Notes

Although we have used Avast Free Antivirus 2016 screenshots in this article, these steps are also applicable for all Avast Antivirus solutions (i.e. also for Avast Pro Antivirus, Avast Internet Security, or Avast Premier) running the latest version available.

Steps are relevant for all Windows versions – Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10 (including Anniversary Update).

Written by Paul B. | Team

My name is Paul and I love Avast since the Home Edition v4.8 (2008). I am recommending it to all my friends, but I realized they don't know how to use it. So I started this site in order to help others getting maximum from this awesome antivirus. Feel free to contact me via Facebook, comments below or this form.

This article has 107 comments | Did we miss anything? Just let us know in the comments!

  1. Donis Reply

    I just installed Avast Internet Security and all seems to have gone well with the installation and it appears to be working fine. The one thing I have noticed is it now takes my browser about 4 minutes to come up. What is causing the delay? I had AVG before and it took seconds for my browser (Firefox) to come up.

  2. Marilyn Reply

    I have subscribed for a year, payment was accepted, tried to activate the code and it goes just so far then it stops and sits there for hours. WHY????????????????????

  3. Hank Reply

    Have downloaded both online and offline install packages (version 11).

    The online installer just creates an icon on the desktop. If you click that icon, it runs for a few seconds and then quits … no error messages … no messages of any kind.

    The offline version runs a little longer and then exits with an error message ( … file corrupt or not authorized on this computer …). I have downloaded it several times from the Avast web page, so I seriously doubt that it came in corrupted every time.

    System is currently running Avast 2015 (version 10) and Avast reports that “everything is up to date”. Win7, however, has been giving an “out of date” warning for Avast for about the last 2 weeks.

    Processor: AMD Athlon XP2400
    OS: Windows 7; SP1
    Mem: 1.5GB

    Processor: AMD Athlon XP

  4. Jane B. Reply

    I am trying to install the free Avast Anti-virus and I have received “didwrap” and “productinfo”, “instupcore”, and “pkgengine” errors and “packageinfo” Notice. What are these errors and how can I fix them ? Will I be able to install Avast at all ?

  5. Dave Turton Reply

    Installing on Vista Home Premium 32bit Gets as far as “Your Avast Free Antivirus Installation is in Progress” Then just sits there for hours going no further!

  6. Dayalan Arockiyanathan Reply

    I using a Lenovo G580 laptop and I have installed windows 10 pro and avast free version as my antivirus…
    And for past 5 years i’m using and recommending my students to use avast,

    But yesterday I installed windows 10 to one of my friend’s laptop and while I tried to install avast on it the windows is not booting well and going to automatic repair mood,
    I also tried a offline installer which is downloaded from avast official site even it wasn’t successful it gives a avast self defense error

    What is the issue that i’m facing here
    I googled about it and found lot of posts regarding this but no use and no proper solutions there

    I hope they will provide a good solution for this issue

  7. H. Sweeting Reply

    Avast insists that I have ‘another antivirus programme’ so it can’t complete download, ‘file path I identified (I didn’t!)is not viable. But I have no other A/V prog – I used a reputable ‘uninstaller’ programme to remove all files of AVG. Avast still refuses to download.

  8. MJ Reply

    I keep trying to install Avast free antivirus on a Windows XP computer and it has 2 problems. 1) It says it detects that another antivirus is installed but it is actually not – when I go to uninstall it, it is not there. 2) If I then push “continue” anyway, it says “Avast cannot be installed into the folder you entered. (The path is invalid.)” I didn’t enter any folder – it is supposed to automatically install into “Program Files”. So what do I do?

      • Jonathan Descheneau Reply

        I get this message as well. Avast was working on my computer (XP).Then I clicked on the user interface and got a “file not found/path invalid” msg even though when I checked the path it was there. I uninstalled Avast and then tried to re-install. When I double clicked on the install file I got the same msg again. How can the system say the path is invalid when I just clicked on it. I even tried installing in safe mode.

  9. Peter Oldroyd Reply

    whilst trying to install I get an error message ‘error completing setup process’ I have tried it with windows firewall switched off and its the same. The laptop has just had a clean windows 10 install, so non other software on system except what comes with windows 10

  10. sandra Reply

    Hi I am trying to install avast and it is saying on my computer THIS TYPE OF FILE COULD HARM YOUR

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