New Avast 2018 December Update has been released and you may be wondering how to update your Avast Antivirus. Luckily, you can do the program update completely for free. With some other vendors, you would need to actually pay for the update, but not with Avast.

You can perform the update process using one of these two options:

Quick Summary

  1. Right-click on the Avast orange icon in the Windows system tray and open Avast UI
  2. Go to Settings » Update » PROGRAM and click on Update
  3. Once update is finished restart your computer

Read more detailed steps and other options including screenshots below

1. Begin the Program Update Process

If your version is outdated, or if you aren’t sure, you can easily check to see if there is a newer one available. Open your Avast and go to ‘Settings‘ » ‘Update.‘ In the tab ‘PROGRAM,‘ you can check if your Avast is outdated or not – if so, you will see a message ‘A new version of the program is available!’. To begin the actual update process, simply click on the ‘Update‘ button.

Updating Avast Version 2018 – Starting the Update Process from Program Interface

Updating Avast Version 2018 – Starting the Update Process from Program Interface

OUR TIP Set automatic program updates, so your Avast is always up-to-date by going to Update Settings and selecting ‘Automatic Update’.

You can also perform the program update via the system tray. There, you will find the orange Avast icon, right-click on it, select ‘Update,‘ and then ‘Program.

Updating Avast Version 2018 – Starting the Update Process from Windows Systray

Updating Avast Version 2018 – Starting the Update Process from Windows Systray

Sometimes, Avast will display a yellow pop-up message informing you about the new program version, and a direct ‘Update now‘ button.

Avast 2018 Update Pop-up Notification

Avast 2018 Update Pop-up Notification

2. Finish the Update Process and Restart Your Computer

Wait until program finishes the update, and after that just restart your computer. You can do it by yourself or by clicking on the button ‘Yes‘ after the program update is downloaded. Do not try to use Avast before you restart your computer.

Updating Avast Version 2018 – Downloading Program Update

Updating Avast Version 2018 – Downloading Program Update

Updating Avast Version 2018 – Restarting Computer

Updating Avast Version 2018 – Restarting Computer

3. Complete the Update Process

After you restart the computer, following post-update screen will appear. It usually contains some additional offers for Avast products like free 20-day trial of Avast Internet Security and more information about the applied program update. To close this screen and start using Avast antivirus just click on the link ‘No thanks – close this window‘.

Completing Avast 2018 Update – Post-Update Screen

Completing Avast 2018 Update – Post-Update Screen

4. Enjoy Peace of Mind with the Latest Version

That’s it, now you should be running on the latest version. You can check that by going to ‘Settings‘ » ‘Update,‘ where you shouldn’t see any message about new versions available, though you will always see the ‘Update‘ button.

Update of Avast Version 2018 Finished – No Newer Version is Available

Update of Avast Version 2018 Finished – No Newer Version is Available

Free Download of Previous/Older Version of Avast

If for any reason you would like to go back to your previous version, you need to uninstall the program, get the installer for the previous version, and install Avast again. Getting the installer for your previous version may be quite hard as Avast officially offers only the latest version for download.

However, you can still find older versions on some servers like FileHippo. Older Avast version are still receiving the virus definitions updates, same as the latest one.

Here are the free download links for the popular older versions which are still working

Avast Program Update Release History

Cover every Avast program update which has been released would take many pages. But if you want to check it, you can find it on the official Avast forum. You will find there release dates and changes from 2012 (version 7) to the actual one.

The Difference Between Update and Upgrade Explained

Some users are confused with the terms update vs. upgrade. So here is the difference:

  • Update – Means actualization to the latest version of the same product. In the case of Avast products, it’s completely free.
  • Upgrade – Means migration to a better product from the same vendor. Obviously, upgrades are paid.

Additional Notes

Although we have used Avast Free Antivirus 2019 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).

Looking for information how to update Avast virus definitions (VPS) manually/offline? Check out our how-to guide on Avast virus definitions update – How to Manually/Offline Update Avast Virus Definitions (VPS) for Free.

If you’re looking for a guide on updating Avast older versions check the links below:

Written by Paul B.

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 45 comments | Did we miss anything? Just let us know in the comments!

  1. Robert Reply

    A nearly 1GB update without a warning has just spent my remaining metered allowance and incurred extra cost.

    Great product but not a great rollout!

  2. Janet Jones Reply

    It is mission imposssible to get get help[ activating Avast upgrade product I bought!!!

  3. Wasyhun Bezabh Reply

    You are very organized.
    Every thing is simple to follow and practical.

    I admire it.

  4. justice Reply

    I am having difficulties updating my out-of-date free antivirus program. Any help available?

  5. Desmond Martin Reply

    Dear Sir,I have Windows 10 .And this what comes up for Avast , this app can’t run on this pc. The following programs are,
    Avast premier antivirus set up on line
    Avast antivirus installer .
    Avast free safe zone browser.
    The programs come into the pc but wont run, or start , help thanks.

  6. J Mangan Reply

    Using Avast Free version.

    Whenever I try to update my virus definitions or program, activity stops at “step 1/3” and nothing further happens. I’m not sure whether virus defs were updated or not, and the only thing I can do is hit the ‘X’ at top right to exit the panel.

    Same thing with updating the program – nothing is happening. Can anyone help?


  7. Biraue Neenalebari Togo Reply

    It is becoming difficult to update avast now. The producer have so made it stringent to update the product. On my pc, I could hardly update.

Leave a Reply to justice Cancel reply

Your email address will not be published. Required fields are marked *