This step-by-step manual explains how to install Avast Free Antivirus 2015 (version 10). 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.

1. Run the Setup File and Select Installation Type

Locate the file called ‘avast_free_antivirus_setup.exe,‘ or ‘avast_free_antivirus_setup_online.exe,‘ on your computer and start the three-step installation. 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, GrimeFighter, 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 SecureLine VPN or GrimeFighter.

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 EasyPass. So be sure to check this option as well and decide whether or not you want that product to be installed.

Avast Free Antivirus 2015 Installation Step 1/3 - Choosing the Type of InstallationAvast Free Antivirus 2015 Installation Step 1/3 – Choosing the Type of Installation

2. Read and Accept End User License Agreement (EULA)

In the second part of the first step, you have to accept the Avast End User License Agreement (so called ‘EULA’). You may read it in the full PDF 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’.

Avast Free Antivirus 2015 Installation Step 2/3 - Accepting EULAAvast Free Antivirus 2015 Installation Step 1/3 – Accepting EULA

3. Actual Installation Process

During the secondstep, 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. Also, you can read useful information about the new Avast 2015 features like Home Network Security.

Avast Free Antivirus 2015 Installation Step 2/3 – Actual Installation ProcessAvast Free Antivirus 2015 Installation Step 2/3 – Actual Installation Process

4. Installation Finished

Congratulations, now you should have Avast antivirus 2015 completely installed on your computer. In the last step just click on ‘Done’ and Avast will launch a quick scan to check your computer for viruses and malware.

Avast Free Antivirus 2015 Installation Step 3/3 - Installation FinishedAvast Free Antivirus 2015 Installation Step 3/3 – Installation Finished

Avast Free Antivirus 2015 Installation – Quick Scan After InstallationAvast Free Antivirus 2015 Installation – Quick Scan After Installation

During the quick scan, you can check the Avast tutorial, which will explain to you the main features and benefits of using Avast Free Antivirus 2015.

aAvast Free Antivirus 2015 Installation – Tutorial After InstallationAvast Free Antivirus 2015 Installation – Tutorial After Installation

After the quick scan is finished, we recommend to restart your system.

5. Register for a Free 1-Year License

Once the installation is complete, 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 for Your Avast Antivirus 2015‘.

Video Manual – How to Install & Register a Free License for Avast Free Antivirus 2015

System Requirements for Avast Antivirus 2015

  • Operating system Microsoft Windows 8 / 7 / Vista / XP (any Edition, 32-bit or 64-bit)
  • Processor Intel Pentium III or above
  • 128 MB RAM memory or above
  • 1 GB of free hard disk space
  • Please note that Avast antivirus 2015 (version 10) 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 Antvirus, Pro Antivirus, Internet Security, and Premier)


Although we have used Avast Free Antivirus 2015 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).

This article has 26 comments | Did we miss anything? Just let us know in the comments!

  1. Keith Reply

    When trying to open the settings tab in avast laptop freeze and I need to shut down the laptop via the power button…I also can’t find avast in my control panel but the avast icon appear at the bottom right in my taskbar…please help

  2. judith Reply

    Hi I was told that avast was better than Microsoft essentials so I installed Avast now I cannot get on internet explorer as it is saying stuff I need to know if I am using Avast right

  3. dusty Reply

    Hi there, Just downloadedAvast Mac Security but got this error message: “Incompatible Software. F-Secure antivirus has been detected. To install the Avast product, please uninstall the incompatible software first.” I looked high and low for another antivirus running in my macbook but non can be found. Any ideas? thanks.

  4. Sven-Erik Reply

    I get this Error when I try to install Avast, whats the problem?
    Next try: 10
    01:22:36Infoservers[1720,2968]ChooseServer: selected server ‘Download f5845763 AVAST9 Server’ with current url ‘’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
    01:22:38Errorpkgengine[1720,2968]DownloadPackage(download): ‘C:\Users\GAREN~1\AppData\Local\Temp\\prod-ais.vpx’, ip: unknown, has failed with code: 41222 (0x0000A106) [Host unreachable]
    01:22:38Errorpkgengine[1720,2968]LoadLatestProdAndParts: download product file ‘prod-ais.vpx’ has failed. Status: 41222 (0x0000A106) [Host unreachable]

  5. Chris Leggate Reply

    I updated Avast Free Edition on my wife’s laptop via FileHippo – she is running Windows 8.1. Now Avast is blocking her access to Paypal! What’s going on and how do I tell Avast that Paypal is OK?

  6. Rom Reply

    I’ve been trying to download and install the 2014 Free Avast for days now. Downloading the software seems to go ok as does as the first part of the installation. However the process takes a very long time and after about 10+ hours of “installing” Avast, the program stops. At this point I then receive a note that says “Installation unsuccessful” instead of getting the “Thank you for installing Avast” as pictured above. I am using an older computer with windows xp on a dial up connection. I have tried deleting and then downloading and installing the product several times now all with the same results.

  7. Marsha Reply

    I diwnloaded GrimeFighter and it started doing it’s thing the I went to the “Language keyboard options” page. And now it will not get off that page. It’s been like this for 2 hours. HELP!

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